Volcanic Activity Reports
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Apr 22 2024 at 06:06:15 UTCA significant earthquake with a magnitude of 5.4 hit the Bárðarbunga caldera in Iceland on April 21, 2024, marking the largest seismic event in the area since the 2015 Holuhraun eruption. This event was followed by a smaller M3.0 aftershock, but no further seismic activity has been reported.
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Apr 19 2024 at 08:30:44 UTCThe ongoing volcanic eruption on Iceland's Reykjanes Peninsula, which began at 20:23 UTC on March 16, 2024, continues to impact the area with significant ground uplift and persistent hazards from volcanic gas emissions. The eruption, centered at the Sundhnúkur crater row, shows no signs of abating, with an expanding lava field now covering 6.15 km² (23.5 mi2).
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Apr 18 2024 at 12:50:40 UTCIncreased seismic activity and inflation detected at Awu Volcano prompted Indonesian authorities to elevate the alert level from 2 to 3 on April 16, 2024. The Center for Volcanology and Geological Hazard Mitigation (PVMBG) has advised the public to maintain a distance of at least 5 km (3.1 miles) from the crater due to potential explosive eruptions. The last eruption at this volcano took place in 2004 (VEI 2).
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Apr 18 2024 at 11:59:34 UTCNew activity/unrest was reported for 8 volcanoes from April 10 to 16, 2024. During the same period, ongoing activity was reported for 12 volcanoes.
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Apr 18 2024 at 10:02:54 UTCIndonesia's Ruang volcano in North Sulawesi experienced several violent eruptions on April 16 and 17, 2024, forcing authorities to raise the Alert Level to 4 of 4 and warn nearby residents there is a potential of a tsunami if parts of the volcano collapse into the sea, similarly to what happened in 1871. The last eruptive episode at this volcano was in September 2002 (VEI 4).
- Santiaguito Volcano Volcanic Ash Advisory: MORE FRQT VA EMS to 13000 ft (4000 m)
Apr 24 2024 at 6:15 am EDT
- Volcanoes Today, 24 Apr 2024: Santiaguito volcano, Fuego, Semeru, Shiveluch, Ibu, Dukono, Reykjanes, Sabancaya
Apr 24 2024 at 4:00 am EDT
- Dukono Volcano Volcanic Ash Advisory: CONTINUOUS VA OBS TO FL060 AT 24/0630Z OBS VA DTG: 24/0630Z to 6000 ft (1800 m)
Apr 24 2024 at 3:00 am EDT
- Fuego Volcano Volcanic Ash Advisory: VA EMS MOVG WSW to 15000 ft (4600 m)
Apr 24 2024 at 2:45 am EDT
- Shiveluch Volcano Volcanic Ash Advisory: VA IS NOT IDENTIFIABLE IN SATELLITE IMAGERY.
Apr 24 2024 at 2:00 am EDT
Satellite image of Shiveluch volcano on 24 Apr 2024
- Semeru Volcano Volcanic Ash Advisory: VA REPORTED TO FL140 AT 23/2346Z EST VA DTG: 24/0440Z
Apr 24 2024 at 1:15 am EDT
Satellite image of Semeru volcano on 24 Apr 2024
- Ebeko Volcano Volcanic Ash Advisory: ERUPTION AT 20240424/0437Z FL140 EXTD SE REPORTED OBS VA DTG: 24/0440Z
Apr 24 2024 at 1:00 am EDT
- Ibu Volcano Volcanic Ash Advisory: DISCRETE VA REPORTED TO FL070 AT 24/0253Z EST VA DTG: 24/0300Z
Apr 23 2024 at 11:30 pm EDT
- Reykjanes volcano update: lava has thickened along protective barriers
Apr 23 2024 at 11:00 pm EDT
The thermal anomaly in the vicinity of the spatter cone and in the southern part of the lava flow field as seen from space on 22 April (image: Landsat 8-9)The eruption continues without any significant change in the activity since the last update.
The main crater continues to generate the constant spattering of incandescent, juvenile, and molten pyroclasts, feeding the open lava flow towards the south. The lava travels through the main lava tube system and becomes obscured from view as it progresses further south.
As the attached visualisation indicates, the lava has thickened along protective barriers to the east of Grindavík over the past few days. The images illustrate the variation in lava width between April 18th and April 23rd. The top photos were captured by the National Defense's webcam situated on a dike east of Grindavík, showing the lava flow advancing towards Suðurstrandarvégur at the eruption's onset. The lower images are from Almannavarnir's webcam atop Hagafell, facing south.
Measurements of the lava flow during the eruption indicate a rate ranging from 3 to 4 cubic meters per second since early April. The most recent measurements were taken from April 15th, and upcoming results expected next week will reveal whether there have been any notable changes in the lava flow since that date.
The ground deformation in the Svartsengi region continues at stable rates, suggesting the ongoing magma accumulation. Model calculations utilizing GPS and satellite data estimate that approximately 7 to 8 million cubic meters have been injected to the magma chamber beneath Svartsengi since the eruption commenced on 16 March.
Source: Icelandic Met Office volcano activity update 24 April 2024Thickening of the lava flow along the defense wall east of the town (image: IMO)
- Sabancaya Volcano Volcanic Ash Advisory: continuous ash emissions to 24000 ft (7300 m)
Apr 23 2024 at 11:00 pm EDT
- Dukono Volcano Volcanic Ash Advisory: CONTINUOUS VA OBS TO FL060 AT 24/0030Z OBS VA DTG: 24/0030Z to 6000 ft (1800 m)
Apr 23 2024 at 9:00 pm EDT
Satellite image of Dukono volcano on 24 Apr 2024
- Santiaguito Volcano Volcanic Ash Advisory: POSS VA EMS CONT
Apr 23 2024 at 7:00 pm EDT
- Sabancaya Volcano Volcanic Ash Advisory: UNABLE TO DETECT
Apr 23 2024 at 5:00 pm EDT
- Volcanic activity worldwide 23 Apr 2024: Santiaguito volcano, Fuego, Semeru, Dukono, Reventador, San...
Apr 23 2024 at 5:00 pm EDT
Lewotobi (Flores): (23 Apr) The explosive eruption of the volcano goes on.Map of today's active volcanoes
Occasional grey ash plumes continue to be generated, rising approximately 100 meters above the crater toward the southwest.
... [read more]
Lewotolo (Lesser Sunda Islands): (23 Apr) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA REPORTED TO FL050 AT 23/0129Z EST VA DTG:23/0140Z
Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ERUPTION REPORTED AT 23/1234Z EST VA DTG:23/1810Z
Dukono (Halmahera): (23 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 .
The full report is as follows: CONTINUOUS VA TO FL090 MOV WNW OBS 23/0630Z to 9000 ft (2700 m)
Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 13000 ft (4000 m) altitude or flight level 130 .
The full report is as follows: FREQUENT VA EMS to 13000 ft (4000 m)
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 .
The full report is as follows: FQT VA EMS to 16000 ft (4900 m)
Sangay (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: POSS VA ACT CONTG
Reventador (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 13000 ft (4000 m) altitude or flight level 130 .
The full report is as follows: VA EMS OBS to 13000 ft (4000 m)
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 26000 ft (7900 m) altitude or flight level 260 .
The full report is as follows: INTERMITTENT EMISSION to 26000 ft (7900 m)The explosion event from Lewotobi Lakilaki volcano early this morning (image: PVMBG)
- Sangay Volcano Volcanic Ash Advisory: POSS VA ACT CONTG
Apr 23 2024 at 3:45 pm EDT
- Fuego Volcano Volcanic Ash Advisory: FQT VA EMS to 16000 ft (4900 m)
Apr 23 2024 at 3:00 pm EDT
- Semeru Volcano Volcanic Ash Advisory: ERUPTION REPORTED AT 23/1234Z EST VA DTG: 23/1810Z
Apr 23 2024 at 2:30 pm EDT
- Reventador Volcano Volcanic Ash Advisory: VA EMS OBS to 13000 ft (4000 m)
Apr 23 2024 at 10:00 am EDT
- Santiaguito Volcano Volcanic Ash Advisory: FREQUENT VA EMS to 13000 ft (4000 m)
Apr 23 2024 at 7:15 am EDT
- Semeru Volcano Volcanic Ash Advisory: ERUPTION REPORTED AT 23/0434Z EST VA DTG: 23/1030Z
Apr 23 2024 at 7:15 am EDT
Satellite image of Semeru volcano on 23 Apr 2024
- Lewotobi Lakilaki volcano (Flores, Indonesia): sporadic explosions persist
Apr 22 2024 at 11:19 pm EDT
The explosion event from Lewotobi Lakilaki volcano early this morning (image: PVMBG)The explosive eruption of the volcano goes on.
Occasional grey ash plumes continue to be generated, rising approximately 100 meters above the crater toward the southwest.
The volcano observatory reported a seismic signal with a maximum amplitude of 2.9 mm and a duration of 45 seconds at 19:20 local time yesterday.
The alert level for the volcano remains at Level 2.
People are advised to avoid an area of about 2 km from the Laki-Laki crater, 3 km to the north-northeast, and 5 km to the northeast direction, respectively.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi volcano activity update 23 April 2024The eastern lava flow development during 2 Feb and 22 April (image: Sentinel-2)
- Volcanic activity worldwide 22 Apr 2024: Santiaguito volcano, Fuego, Popocatépetl, Semeru, Ruang, D...
Apr 22 2024 at 5:00 pm EDT
Bardarbunga (Central Iceland): (22 Apr) A new seismic activity occurred beneath the volcano recently.Map of today's active volcanoes
A volcano-tectonic earthquake with magnitude M 5.4 was registered at 06:37 UTC yesterday morning at 0.1 km depth.
The quake is not an indicator of an imminent eruption yet.
Bagana (Bougainville Island, Papua New Guinea): (21 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 .
The full report is as follows: VA TO FL070 OBS AT 21/2120Z MOV SW OBS VA DTG:21/2120Z to 7000 ft (2100 m)
Lewotobi (Flores): (22 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 05 kts in SW direction.
The full report is as follows: GROUND REPORT OF ERUPTION AT 22/0250Z OBS VA DTG:22/0300Z to 7000 ft (2100 m)
Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VONA STATE ERUPTION TO FL140 MOV W AT 21/2010Z
Dukono (Halmahera): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 .
The full report is as follows: VA TO FL090 OBS AT 22/0640Z MOV W EST VA DTG:22/1840Z to 9000 ft (2700 m)
Ruang (Sulawesi & Sangihe Islands): (22 Apr) Following the strong paroxysm activity at the volcano recently, the activity diminished to minor-sized explosions.
Therefore, the alert level for the volcano has been lowered from Level IV (Awas) to Level III (Siaga).
... [read more]
Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 18000 ft (5500 m) altitude or flight level 180 .
The full report is as follows: VA EMS OBS to 18000 ft (5500 m)
Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 13000 ft (4000 m) altitude or flight level 130 .
The full report is as follows: VA EMS OBS to 13000 ft (4000 m)
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: ONGOING VA MOV SW to 14000 ft (4300 m)
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 25000 ft (7600 m) altitude or flight level 250 and is moving at 5 kts in SE direction.
The full report is as follows: continuous ash emissions to 25000 ft (7600 m)
Volcano Activity Summary for 22 Apr 2024:Depth and magnitude vs time plot showing the M 5.4 quake in the vicinity of Bardarbunga volcano (image: VolcanoDiscovery)
- Ruang volcano (Sulawesi & Sangihe Islands, Indonesia): alert status downgraded to Level III (Siaga)
Apr 21 2024 at 11:32 pm EDT
Weakened Ruang volcano early this morning (image: PVMBG)Following the strong paroxysm activity at the volcano recently, the activity diminished to minor-sized explosions.
Therefore, the alert level for the volcano has been lowered from Level IV (Awas) to Level III (Siaga).
Furthermore, the exclusion zone restricting access to the area has been reduced to 4 km from the main crater.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi volcano activity update 22 April 2024
- Bardarbunga volcano (Iceland): M 5.4 quake yesterday
Apr 21 2024 at 11:20 pm EDT
Depth and magnitude vs time plot showing the M 5.4 quake in the vicinity of Bardarbunga volcano (image: VolcanoDiscovery)A new seismic activity occurred beneath the volcano recently.
A volcano-tectonic earthquake with magnitude M 5.4 was registered at 06:37 UTC yesterday morning at 0.1 km depth.
The quake is not an indicator of an imminent eruption yet.
- Volcanic activity worldwide 21 Apr 2024: Santiaguito volcano, Fuego, Semeru, Ruang, Dukono, Marapi, ...
Apr 21 2024 at 5:00 pm EDT
Reykjanes (Reykjanes peninsula (SW Iceland)): (21 Apr) In the Sundhnúkur area, there has been a notable shift in volcanic activity with an increasing chance of magma propagation coinciding with the ongoing eruption. This new development marks a departure from the previous cyclical pattern observed since December.Map of today's active volcanoes
If magma continues to accumulate at its current rate, the likelihood of another magma propagation event within the next few days or weeks rises, even while the current eruption persists. Notably, the occurrence of magma propagation during an ongoing eruption is unprecedented in this region, adding to the uncertainty surrounding future developments.
... [read more]
Lewotolo (Lesser Sunda Islands): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VONA STATED ERUPTION TO FL060 AT 21/0902Z MOV W
Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VONA STATE ERUPTION TO FL140 MOV W AT 21/1026Z
Marapi (Western Sumatra, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CVGHM REPORTED ERUPTION TO UNKNOWN HEIGHT.
Dukono (Halmahera): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 .
The full report is as follows: VA TO FL090 MOV W EST VA DTG:21/1840Z to 9000 ft (2700 m)
Ruang (Sulawesi & Sangihe Islands): (21 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 .
The full report is as follows: VA TO FL070 OBS AT 21/0330Z MOV SW OBS VA DTG:21/0630Z to 7000 ft (2100 m)
...21 Apr:
Yesterday, the Landsat 8-9 satellite captured the first almost cloud-free satellite image of the volcano, portraying the aftermath of the strong eruptive episode.
The origin green and vegetated area at the volcano has transformed into a black edifice, blanketed by a heavy load of dark lapilli and fine ash from the recent intense paroxysmal activity and several massive pyroclastic flows.
... [read more]
Santiaguito (Guatemala): Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash
Fuego (Guatemala): Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash
Nevado del Ruiz (Colombia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 .
The full report is as follows: VA EMS REPORTED to 22000 ft (6700 m)
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 24000 ft (7300 m) altitude or flight level 240 and is moving at 10 kts in S direction.
The full report is as follows: PUFF EMISSIONS to 24000 ft (7300 m)
Volcano Activity Summary for 21 Apr 2024:In early April, a new ground uplift started and might follow another magma accumulation within the magma chamber (image: IMO)
- Ruang volcano (Sulawesi & Sangihe Islands, Indonesia): first post-eruption satellite image
Apr 20 2024 at 11:48 pm EDT
The aftermath of the strong eruptive period at Ruang as seen from space on 20 April (image: Landsat 8-9)Yesterday, the Landsat 8-9 satellite captured the first almost cloud-free satellite image of the volcano, portraying the aftermath of the strong eruptive episode.
The origin green and vegetated area at the volcano has transformed into a black edifice, blanketed by a heavy load of dark lapilli and fine ash from the recent intense paroxysmal activity and several massive pyroclastic flows.
Although the explosive eruption at the volcano continues, it is at essentially considerably diminished levels.
Three explosions have been detected through the surveillance camera over the past two days. Ash-rich columns rose to an altitude ranging between 1,125 and 1,925 meters drifting to the south.
The alert level for the volcano remains at Level IV (Awas).
In order to mitigate the current risk, people are advised to avoid the area within approximately 6 km of the main crater.The before-and-after image of the volcano shows a dramatic change in morphology. (Image: Landsat 8-9)
- Reykjanes volcano update: Likelihood of new eruption is increasing and could initiate in close proximity to ongoing one
Apr 20 2024 at 11:15 pm EDT
In early April, a new ground uplift started and might follow another magma accumulation within the magma chamber (image: IMO)In the Sundhnúkur area, there has been a notable shift in volcanic activity with an increasing chance of magma propagation coinciding with the ongoing eruption. This new development marks a departure from the previous cyclical pattern observed since December.
If magma continues to accumulate at its current rate, the likelihood of another magma propagation event within the next few days or weeks rises, even while the current eruption persists. Notably, the occurrence of magma propagation during an ongoing eruption is unprecedented in this region, adding to the uncertainty surrounding future developments.
Possible scenarios if another eruption would occur:
Magma would flow from the reservoir beneath Svartsengi to the Sundhnúkur crater row, as observed in the last six instances.
Subsequent to this, new eruptive fissures could form between Stóra-Skógfell and Hagafell, or the current eruptive crater could enlarge due to a sudden surge in lava flow, possibly occurring with minimal warning.
If the magma propagation leads to new volcanic fissures elsewhere along the dike formed on November 10, significant seismic activity, deformation, and pressure changes in boreholes would likely provide longer advance notice.
Alternatively, the current eruption's decline may halt and transition into a steady increase until a new balance is achieved between incoming magma and surface outflow from the crater.
However, if the magma propagation results in new eruptive fissures outside the anticipated area, it would likely be accompanied by intense seismic activity and deformation, providing considerably more advance warning than previous eruptions.
Source: Icelandic Met Office volcano activity update 21 April 2024
- Volcanic activity worldwide 20 Apr 2024: Santiaguito volcano, Fuego, Semeru, Ruang, Ibu, Dukono, Mar...
Apr 20 2024 at 5:00 pm EDT
Taal (Luzon, Philippines): The observatory PHIVOLCS recorded several small phreatic bursts from the Main Crater Lake within the Taal caldera at 11:02 and 17:10 local time today.Map of today's active volcanoes
The explosive activity was accompanied by emissions of steam-laden plumes, which reached approx. 300-600 meters above the fumarolic vents drifting southwest and northwest. Events were steam driven only, caused by overheated water flashing to steam. Events lasted approx. 4-5 minutes.
... [read more]
Ibu (Halmahera, Indonesia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 .
The full report is as follows: VA TO FL070 MOV W, REPORTED AT 20/1418Z EST VA DTG:20/1510Z to 7000 ft (2100 m)
Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: INTERMITTENT VA ERUPTIONS TO FL170 MOV W/SW
Marapi (Western Sumatra, Indonesia): (20 Apr) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA TO UNKNOWN HEIGHT OBS FM GND AT 20/0104Z
Dukono (Halmahera): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA TO FL090 MOV W/SW OBS 20/1840Z
Ruang (Sulawesi & Sangihe Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 5000 ft (1500 m) altitude or flight level 050 .
The full report is as follows: CONTINUOUS VA TO FL050 MOV SOUTHWEST OBS VA DTG:20/1820Z to 5000 ft (1500 m)
...20 Apr:
Although the explosive eruption at the volcano continues, it is at essentially considerably diminished levels.
Three explosions have been detected through the surveillance camera over the past 48 hours. Ash-rich columns rose to an altitude ranging between 1,125 and 1,925 meters drifting to the south.
... [read more]
Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: NEW VA EMS to 14000 ft (4300 m)
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 .
The full report is as follows: VA EMS OBS to 16000 ft (4900 m)
Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows: NEW VA EMS to 19000 ft (5800 m)
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 24000 ft (7300 m) altitude or flight level 240 and is moving at 15 kts in S direction.
The full report is as follows: INTERMITTENT EMISSION to 24000 ft (7300 m)Small phreatic burst at Taal volcano today (image: PHIVOLCS)
- Taal volcano (Luzon Island, Philippines): minor phreatic bursts today
Apr 20 2024 at 2:16 pm EDT
Small phreatic burst at Taal volcano today (image: PHIVOLCS)The observatory PHIVOLCS recorded several small phreatic bursts from the Main Crater Lake within the Taal caldera at 11:02 and 17:10 local time today.
The explosive activity was accompanied by emissions of steam-laden plumes, which reached approx. 300-600 meters above the fumarolic vents drifting southwest and northwest. Events were steam driven only, caused by overheated water flashing to steam. Events lasted approx. 4-5 minutes.
Sulfur dioxide (SO2) emissions reached to a 2104 tonnes/day on 18 April.
The seismic station measured 13 earthquakes and five two-minute-long volcanic tremor events over the past 24 hours.
The latest maximum Main Crater Lake temperature reached to a 72.7 °C on 20 February.
The short-term electronic tiltmeter and GPS measurements found the western edifice area deflated. However, from a long-term point of view, instruments continue to register the ongoing uplift of the Taal caldera.
The alert level for the volcano remains at Level 1.
Source: Philippine Institute of Volcanology and Seismology volcano activity update 20 April 2024
LOOK: Another short-lived phreatic event in the Taal Main Crater was recorded by the Main Crater Observation Station (VTMC) at 11:02 AM, 20 April 2024. The event lasted approximately 5 minutes and produced a 300 meter-tall steam plume that drifted northwest. pic.twitter.com/zYnIaxhGcQ
— PHIVOLCS-DOST (@phivolcs_dost) April 20, 2024
LOOK: Another short-lived phreatic event in the Taal Main Crater was recorded by the Main Crater Observation Station (VTMC) at 05:10 PM, 20 April 2024. The event lasted approximately 4 minutes and produced a 600 meter-tall steam plume that drifted southwest. pic.twitter.com/UpB9RahIip
— PHIVOLCS-DOST (@phivolcs_dost) April 20, 2024
- Ruang volcano (Sulawesi & Sangihe Islands, Indonesia): explosions continue at reduced levels
Apr 20 2024 at 1:29 am EDT
Dense ash emissions from Ruang volcano yesterday (image: PVMBG)Although the explosive eruption at the volcano continues, it is at essentially considerably diminished levels.
Three explosions have been detected through the surveillance camera over the past 48 hours. Ash-rich columns rose to an altitude ranging between 1,125 and 1,925 meters drifting to the south.
The alert level for the volcano remains at Level IV (Awas).
In order to mitigate the current risk, people are advised to avoid the area within approximately 6 km of the main crater.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi volcano activity update 19 April 2024Increasingly dark ash column from Ruang volcano yesterday (image: PVMBG)
- Volcanic activity worldwide 19 Apr 2024: Santiaguito volcano, Fuego, Popocatépetl, Semeru, Ruang, D...
Apr 19 2024 at 5:00 pm EDT
Reykjanes (Reykjanes peninsula (SW Iceland)): (19 Apr) The updated hazards assessment will be in effect from 15:00 today until 23 April, pending further developments.Map of today's active volcanoes
Changes have been made to the assessment, with reduced lava flow hazards in most areas except Zone 3 (Sundhnúkur crater row) and Zone 6. This adjustment reflects the absence of recent lava flows in other regions over the past two weeks. Current eruption activity suggests that lava is unlikely to extend far from the crater into other hazard zones.
... [read more]
Semeru (East Java, Indonesia): (19 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: VA TO FL140 OBS ON SAT IMG MOV SW AT 19/0000Z to 14000 ft (4300 m)
Marapi (Western Sumatra, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA TO UNKNOWN HEIGHT OBS FM GND AT 19/1918Z
Dukono (Halmahera): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA TO FL090 MOV SW AT AT 19/1900Z
Ruang (Sulawesi & Sangihe Islands): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA TO FL070 LAST REP 19/0906Z MOV SW
...19 Apr:
The plume of sulfur dioxide (SO2) from the recent eruption of Ruang volcano extends over 1000 kilometers. The Sentinel-5P observed the emissions of sulfur dioxide on April 18th as they drifted across a vast part of the Celebes Sea and the Borneo Island.
GEMS measurements of sulfur dioxide (SO₂) from the eruption on April 18th show notable data gaps in areas with high SO₂ column amounts, likely due to clouds or ash. A very preliminary estimate suggests a total sulfur dioxide mass of approximately 0.3 teragrams (Tg).GK-2B #GEMS SO₂ data for the #Ruang #volcanic cloud on April 18. There are some significant data gaps (likely due to clouds or ash) in regions of high SO₂ column amount, but a very preliminary estimate of total SO₂ mass is ~0.3 Tg. pic.twitter.com/qRfb73F8Yb
— Prof. Simon Carn (@simoncarn) April 18, 2024
Popocatépetl (Central Mexico): (19 Apr) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT DETECTED.
Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: POSS VA EMS to 14000 ft (4300 m)
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 and is moving at 20 kts in SW direction.
The full report is as follows: FRQT VA EMS. to 16000 ft (4900 m)
Nevado del Ruiz (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT OBSD.
Sangay (Ecuador): (19 Apr) Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash
Reventador (Ecuador): Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 24000 ft (7300 m) altitude or flight level 240 .
The full report is as follows: INTERMITTENT EMISSIONS to 24000 ft (7300 m)
Volcano Activity Summary for 19 Apr 2024:The map is valid from 16 April until 23 April (image: IMO)
- Reykjanes volcano update: updated hazard map, eruption continues
Apr 19 2024 at 12:41 am EDT
The map is valid from 16 April until 23 April (image: IMO)The updated hazards assessment will be in effect from 15:00 today until 23 April, pending further developments.
Changes have been made to the assessment, with reduced lava flow hazards in most areas except Zone 3 (Sundhnúkur crater row) and Zone 6. This adjustment reflects the absence of recent lava flows in other regions over the past two weeks. Current eruption activity suggests that lava is unlikely to extend far from the crater into other hazard zones.
Consequently, the overall hazard rating in Zone 4 (Grindavík) has been downgraded from high (red) to considerable (orange). Hazard levels in other areas remain unchanged. The risk from gas emissions remains high across all areas except in the Sundhnúkur crater row area (Zone 3), where it is considered very high. Zones 4 (Grindavík) and 6 maintain a high hazard level due to sinkholes and fault movements.
The activity at the eruption site resumes and has now lasted for a month.
The main crater continues to generate the constant spattering of incandescent, juvenile and molten pyroclasts from where feeds the lava flow in the southern direction.
The lava flows predominantly towards the south but has not traveled a significant distance. Instead, it has accumulated and thickened near the crater rather than extending further in length.
Source: Icelandic Met Office volcano activity update 19 April 2024
- Ruang volcano (Sulawesi & Sangihe Islands, Indonesia): eruption plume drifts over 1000 km, currently over broad part of Celebes Sea and Borneo Island
Apr 19 2024 at 12:26 am EDT
The eruption from Ruang volcano has been drifting westward over a vast area of Indonesia (image: ADAM Platform)The plume of sulfur dioxide (SO2) from the recent eruption of Ruang volcano extends over 1000 kilometers. The Sentinel-5P observed the emissions of sulfur dioxide on April 18th as they drifted across a vast part of the Celebes Sea and the Borneo Island.
GEMS measurements of sulfur dioxide (SO₂) from the eruption on April 18th show notable data gaps in areas with high SO₂ column amounts, likely due to clouds or ash. A very preliminary estimate suggests a total sulfur dioxide mass of approximately 0.3 teragrams (Tg).
GK-2B #GEMS SO₂ data for the #Ruang #volcanic cloud on April 18. There are some significant data gaps (likely due to clouds or ash) in regions of high SO₂ column amount, but a very preliminary estimate of total SO₂ mass is ~0.3 Tg. pic.twitter.com/qRfb73F8Yb
— Prof. Simon Carn (@simoncarn) April 18, 2024Satellite-based measurements of SO2 concentrations in the atmosphere show the impressive SO2 plumes ejected by Ruang volcano (image: TROPOMI SO2)
- Volcanic activity worldwide 18 Apr 2024: Santiaguito volcano, Fuego, Popocatépetl, Semeru, Ruang, D...
Apr 18 2024 at 5:00 pm EDT
Lewotolo (Lesser Sunda Islands): (17 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 10 kts in W direction.Map of today's active volcanoes
The full report is as follows: VA REPORTED TO FL070 OBS VA DTG:17/2220Z to 7000 ft (2100 m)
Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: GROUND REPORT OF ERUPTION WITH VA TO FL140 MOV SE
Marapi (Western Sumatra, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: DISCRETE VA TO UNKNOWN HEIGHT REPORTED AT 18/0829Z
Dukono (Halmahera): (18 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 and is moving at 05 kts in E direction.
The full report is as follows: CONTINUOUS VA TO FL080 OBS AT 18/0100Z MOV E to 8000 ft (2400 m)
Ruang (Sulawesi & Sangihe Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 50000 ft (15200 m) altitude or flight level 500 and is moving at 10 kts in SE direction.
The full report is as follows: VA TO FL500 OBS ON HIMAWARI-9 AT 18/1440Z OBS VA DTG:18/1440Z to 50000 ft (15200 m)
...18 Apr:
Today, the PVMBG surveillance webcam captured the first clear image of the volcano following the strong eruptive episode.
The origin green and vegetated area at the volcano has transformed into a black edifice, blanketed by a heavy load of dark lapilli and fine ash from the recent intense paroxysmal activity.
It remains unclear whether the eruptive phase has concluded or temporarily halted. However, the webcam image suggests that the volcano is currently calm, with only degassing observed at the summit.
...18 Apr:
The alert status for the volcano has been raised from Level III (Siaga) to Level IV (Awas) due to the ongoing high-magnitude explosive eruption over the past two days.
In order to mitigate the current risk, people are advised to avoid the area within approximately 6 km of the main crater.
... [read more]
Fernandina (Galápagos Islands, Ecuador): (18 Apr) The effusive eruption at the volcano continues.
Although the lava flow advance seems to have slowed down a bit due to a lesser amount of gas-steam emissions at the new lava delta identified in the latest satellite image, it still continuse to be active and feed the shoreline.
... [read more]
Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: NEW VA EMS to 20000 ft (6100 m)
Santiaguito (Guatemala): Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 .
The full report is as follows: VA EMS CONT to 16000 ft (4900 m)
Nevado del Ruiz (Colombia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows: POSS VA EMS to 19000 ft (5800 m)
Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows: POSS VA EMS to 19000 ft (5800 m)
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 25000 ft (7600 m) altitude or flight level 250 and is moving at 10 kts in NW direction.
The full report is as follows: continuous ash emissions to 25000 ft (7600 m)Satellite image of Lewotolo volcano on 17 Apr 2024
- Ruang volcano (Sulawesi & Sangihe Islands, Indonesia): first post-eruption image
Apr 18 2024 at 5:58 am EDT
The first clear image of Ruang volcano after the eruptive activity (image: PVMBG)Today, the PVMBG surveillance webcam captured the first clear image of the volcano following the strong eruptive episode.
The origin green and vegetated area at the volcano has transformed into a black edifice, blanketed by a heavy load of dark lapilli and fine ash from the recent intense paroxysmal activity.
It remains unclear whether the eruptive phase has concluded or temporarily halted. However, the webcam image suggests that the volcano is currently calm, with only degassing observed at the summit.
- Fernandina volcano (Galápagos Islands): lava flows continue to feed lava delta
Apr 18 2024 at 2:48 am EDT
The lava at the contact with sea (image: Instituto Geofísico)The effusive eruption at the volcano continues.
Although the lava flow advance seems to have slowed down a bit due to a lesser amount of gas-steam emissions at the new lava delta identified in the latest satellite image, it still continuse to be active and feed the shoreline.
Sulfur dioxide (SO2) emissions reached 325 tonnes at 13:00 local time on 16 April.
According to the MIROVA Detection System, a high thermal anomaly (589 MW) was detected in satellite images this morning.
As the volcano is uninhabited, there is no threat to the population.
Source: Instituto Geofísico volcano activity update 18 April 2024
- Ruang volcano (Sulawesi & Sangihe Islands, Indonesia): alert level raised to level IV, massive umbrella cloud triggered by eruption
Apr 18 2024 at 2:36 am EDT
A massive umbrella cloud following Ruang paroxysm episode (image: CIRA)The alert status for the volcano has been raised from Level III (Siaga) to Level IV (Awas) due to the ongoing high-magnitude explosive eruption over the past two days.
In order to mitigate the current risk, people are advised to avoid the area within approximately 6 km of the main crater.
Following the GEMS measurements, the eruption plume spread into an umbrella cloud, expecting higher levels of SO2 concentrations into the stratosphere. For comparison, the 2002 Ruang eruption generated ~0.1 Tg SO₂.
About the volcanic lightning phase, almost 4,000 instances of lightning have been detected within the eruption plume of of the volcano since 17:00 (UTC) on 16 April.
An umbrella cloud formation following the Ruang eruption on 17 April (source: CIRA)An explosive eruption of the Ruang volcano occurred just hours ago in Indonesia.Himawari-9 captured a view of the powerful eruption. pic.twitter.com/swap7hG1Lz
— CIRA (@CIRA_CSU) April 17, 2024About the volcanic lightning phase, almost 4,000 instances of lightning have been detected within the eruption plume of of the volcano since 17:00 (UTC) on 16 April. (image: Chris Vagasky)
- Volcanic activity worldwide 17 Apr 2024: Santiaguito volcano, Fuego, Semeru, Ruang, Ibu, Dukono, Rev...
Apr 17 2024 at 5:00 pm EDT
Ibu (Halmahera, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA OBS TO FL160 MOV S/SE AT 17/0340Z EST VA DTG:17/1540ZMap of today's active volcanoes
Lewotolo (Lesser Sunda Islands): (17 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 .
The full report is as follows: DISCRETE VA OBS TO FL070 MOV NW AT 17/0100Z to 7000 ft (2100 m)
Semeru (East Java, Indonesia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 05 kts in SW direction.
The full report is as follows: VA TO FL150 REPORTED AT 17/1733Z EST VA DTG:17/1733Z to 15000 ft (4600 m)
Dukono (Halmahera): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA TO FL080, LAST REPORT AT 17/0942Z
Ruang (Sulawesi & Sangihe Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 55000 ft (16800 m) altitude or flight level 550 .
The full report is as follows: VA TO FL550 OBS ON HIMAWARI-9 AT 17/1910Z OBS VA DTG:17/1910Z to 55000 ft (16800 m)
...17 Apr:
The activity at the volcano is still continuing at high levels, even at the time of this update.
The situation has been worsening as it has shown very dramatic behaviour over the past several hours.
... [read more]
...17 Apr:
A new eruption commenced at the volcano a shortly after midnight today.
The eruption has been accompanied by a vigorous lava-fountaining episode, known as paroxysm, generating copious ash plumes and lava flows.
... [read more]
Santiaguito (Guatemala): (17 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: OCNL VA EMS. to 14000 ft (4300 m)
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 .
The full report is as follows: VA EMS CONT to 16000 ft (4900 m)
Nevado del Ruiz (Colombia): (17 Apr) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT OBSD.
Reventador (Ecuador): Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 26000 ft (7900 m) altitude or flight level 260 and is moving at 10 kts in W direction.
The full report is as follows: continuous ash emissions to 26000 ft (7900 m)
Nyiragongo (DRCongo): (17 Apr) A new lava lake started to occupy at the summit crater of the volcano over the past two days.
The latest Sentinel-2 image of the volcano revealed a strong thermal anomaly, indicating new lava overflows from the crater vent. A spreading, circular area of lava now covers the previous solidified crust of the lava lake, forming thin, semi-plastic layers on the lake surface due to convection of the underlying lava.
Nyamuragira (DRCongo): (17 Apr) The effusive eruption at the volcano continues.
From the latest Sentinel-2 satellite image on 16 April, the lava lake continues to churn as the lava wells up from below and activity remains confined within the volcano's summit caldera associated with the intermittent night-time glow and constant degassing at the top of the volcano. The central lava lake is currently at stable condition suggests that there is a delicate equilibrium between heat and magma supply and loss (through cooling and mild emissions during degassing).
Volcano Activity Summary for 17 Apr 2024:Satellite image of Semeru volcano on 17 Apr 2024
- Semeru volcano (Eastern Java) - Smithsonian / USGS Weekly Volcanic Activity Report for 10 April-16 April 2024 (Continuing Activity)
Apr 17 2024 at 10:00 am EDT
PVMBG reported that eruptive activity continued at Semeru during 10-16 April. White-and-gray or occasionally white-to-brown ash plumes rose 300-1,000 m above the summit and drifted in multiple directions on most days. An eruptive event was recorded on 14 April but no emission was visible.
The Alert Level remained at 3 (the third highest level on a scale of 1-4). The public was warned to stay at least 5 km away from the summit in all directions, 13 km from the summit to the SE, 500 m from the banks of the Kobokan drainage as far as 17 km from the summit, and to avoid other drainages including the Bang, Kembar, and Sat, due to lahar, avalanche, and pyroclastic flow hazards.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
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From: Global Volcanism Program, 2024. Report on Semeru. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 10 April-16 April 2024. Smithsonian Institution and US Geological Survey.
- Sheveluch volcano (Central Kamchatka, Russia) - Smithsonian / USGS Weekly Volcanic Activity Report for 10 April-16 April 2024 (Continuing Activity)
Apr 17 2024 at 10:00 am EDT
KVERT reported continuing eruptive activity at Sheveluch. A thermal anomaly was identified in satellite images during 6-9 and 11 April. A plume of resuspended ash drifted 140 km ESE on 11 April.
The Aviation Color Code remained at Orange (the third level on a four-color scale). Dates are based on UTC times; specific events are in local time where noted.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
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From: Global Volcanism Program, 2024. Report on Sheveluch. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 10 April-16 April 2024. Smithsonian Institution and US Geological Survey.