Volcanic Activity Reports



  • Apr 19 2018 at 6:12 am EDT
    An explosive eruption occurred at Mt. Io in the Kirishima mountain range in Kyushu at around 3:39 p.m. on Thursday, according to the Japan Meteorological Agency. Following the eruption, the agency raised the volcanic alert level from Level 2 (do not approach the crater) to Level 3 (do not approach the volcano.) The agency said that it confirmed the scattering of volcanic rocks around the crater of Mt. Io. According to the agency, it is possible that the volcanic activity will further increase. The agency has issued a warning for an area approximately within a two-kilometer radius of Mt. Io of ...

Recent Volcano Updates from the U.S. Geological Survey Volcano Hazards Program

Apr 20, 2018 02:38 - Activity Summary: Mauna Loa Volcano is not erupting. Rates of deformation and seismicity have not changed significantly in the past week. Observations: During the past week, only a few small-magnitude earthquakes occurred beneath the volcano. The number of monthly and weekly earthquakes recorded beneath the volcano has decreased to near background levels. Global Positioning System (GPS) and Interferometric Synthetic Aperture Radar (InSAR) measurements indicate slowing deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift ...
Apr 19, 2018 19:34 - Activity Summary: Eruptions continue at K?lauea Volcano?s summit and East Rift Zone. The summit lava lake level rose slightly overnight as summit tiltmeters recorded a reversal from deflationary tilt to inflationary tilt. Pu?u ???? cone continues the inflationary trend of the past several weeks, and the Episode 61g lava flow is active above Pulama pali. The flow does not pose a threat to nearby communities at this time. There is currently no active lava on the pali, the coastal plain, or entering the ocean. Summit Observations: Summit tiltmeters recorded very ...
Apr 19, 2018 19:23 - Low-level unrest continues at Cleveland Volcano. No eruptive activity was observed over the past day in cloudy satellite data, and no significant activity was detected in seismic or infrasound data. Cleveland volcano is monitored by only two seismic stations, which restricts AVO's ability to detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of seismic, infrasound, lightning, and satellite data.
Apr 13, 2018 23:06 - Activity Update: All volcanoes in the Cascade Range of Oregon and Washington are at normal background levels of activity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; and Mount Hood, Mount Jefferson, Three Sisters, Newberry, and Crater Lake in Oregon. Recent Observations: There were small located earthquakes at Mount St. Helens, Rainier, and Newberry.
Apr 3, 2018 03:34 - Recent work and news On March 15, at about 5:30 AM MDT, Steamboat Geyser (widely acknowledged as the tallest geyser in the world), in the Norris Geyser Basin, erupted for the first time since 2014. Based on seismic data, the geyser eruption was smaller in magnitude than its 2013 and 2014 eruptions, but it was still sufficient to deposit small muddy clasts around the vent. In other news, we are pleased to announce an opportunity for the public to meet YVO scientists! On Monday, May 7, at 6:30-8:00 PM MDT, a public forum will be held at the community center in ...
Apr 3, 2018 01:59 - No significant activity in March. HVO recorded 10 earthquakes in the vicinity of L??ihi.
Apr 3, 2018 01:59 - No significant activity in March. HVO recorded 1 earthquake deeper than 13 km (8 miles) depth and no earthquakes shallower than 13 km (8 miles) in the vicinity of the volcano. HVO's continuously recording Global Positioning System (GPS) receiver atop Hual?lai recorded no significant deformation.
Apr 3, 2018 01:59 - No significant activity in March. No earthquakes were recorded in the vicinity of the volcano and the continuously recording Global Positioning System (GPS) instrument atop Haleakal? volcano recorded no significant deformation.
Apr 3, 2018 01:59 - No significant activity in March. HVO recorded 12 earthquakes deeper than 13 km (8 mi) and 10 shallow earthquakes beneath the volcano. A single, continuously recording Global Positioning System (GPS) receiver atop Mauna Kea (operated by NASA?s Jet Propulsion Laboratory) recorded no significant deformation.
Apr 2, 2018 18:37 - Monitored CALIFORNIA VOLCANOES Current Volcano Alert Level: all NORMAL Current Aviation Color Code: all GREEN Activity Update: All volcanoes monitored by CalVO using telemetered, real-time sensor networks exhibit normal levels of background seismicity and deformation. Volcanoes monitored include Mount Shasta, Medicine Lake Volcano, Clear Lake Volcanic Field, Lassen Volcanic Center, Long Valley Volcanic Region, Coso Volcanic Field, Ubehebe Craters, and Salton Buttes. Observations for March 1, 2018 (0000h PST) through March 31, 2018 (2359h PDT): Mt Shasta: ...

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Smithsonian / USGS Weekly Volcanic Activity Report





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