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Recent volcano eruption in alaska12/2/2023 “Earthquake activity is our best indicator of what’s going on there, and that’s something that we’ll be watching closely. On the evening of August 6, 2008, on a remote island in Alaska’s Aleutian chain, the side of a volcano began crumbling into the turquoise waters of its crater lake. The primary hazards of past eruptions, and thus likely in future eruptions, have been volcanic ash emissions producing local and region ashfall and drifting ash clouds. “You would expect many, many earthquakes to be observed prior to any eruptive activity if it were to occur,” Schneider said. The volcanic field has erupted a wide range of basalt to rhyolite compositions from numerous vents over the past 600,000 years. There’s been about 40 quakes that were located in the area in the last two years, about one or two a month, far less than what’s been recorded this week. The volcano observatory did a retrospective analysis of earthquake data near Mount Edgecumbe, which showed a small number of earthquakes started occurring in 2020. “We’ve heard nothing from anybody, so we are all good.” Alaskan volcanoes have produced one or two eruptions per year since 1900. “We didn’t feel anything,” Mayville said. He said there’s been no damage from the quakes. “I don’t think anybody was even aware that those happened,” said Zach Mayville who answered the phone at House of Liquor in Sitka. (Courtesy of Peggy Kruse) Three volcanoes are erupting across the Aleutian Range Great Sitkin and. The earthquakes, most of which were too small to be observed on multiple seismic stations, continued Wednesday although the frequency has declined. AugActive lava fountaining at Great Sitkin volcano on Aug. You can find more detailed information at the Alaska Volcano Observatory. The additional headers are rarely used except in the event of multiple eruptions. Please note, that the vast majority of the VAA products get transmitted under one WMO header (FVAK21PAWU). “Volcanoes do have swarms of earthquakes that do not lead to eruption,” he said. This is the listing of the most recent volcanic ash advisories and graphics. Right now, there is no need for a huge amount of concern, Schneider said. “We really can’t tell the difference at this point.” The current report, which describes activity between August 2022-January 2023, is monitored remotely by the Alaska Volcano Observatory (AVO) using local. “These aren’t necessarily related to volcanic activity, they could be a tectonic in nature or a combination of tectonics and the volcano,” he said.
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