![]() history, tied with another Alaskan quake from 1938, according to USGS data. It was centered 65 miles offshore of the Alaska Peninsula. The quake was the seventh largest in U.S. The earthquake, with a preliminary magnitude of 8.2, according to the U.S. Geological Survey Wednesday, March 8, 2023, 11:29 AM AKST (Wednesday, March 8, 2023, 20:29 UTC). In Sand Point, which also evacuated on Wednesday night, morning checks revealed no road, harbor or dock damage, said Jordan Keeler, administrator for the community of about 1,300 people.Īccording to the USGS, the quake was followed by over 25 aftershocks in the region, with two around magnitude 6.0. ALASKA VOLCANO OBSERVATORY DAILY UPDATE U.S. "It makes it more likely that something is going to happen adjacent." Post-earthquake seafloor displacements measured offshore Alaska. "When that happens next to an area that's still locked, it increases the stress in the adjacent area," he said. USGS Magnitude 2.5+ Earthquakes, Past Day 38 earthquakes. That temblor appears to have helped set up Wednesday’s quake, Holtkamp said, a typical phenomenon when a big event strikes a major fault or subduction zone, he said. The Latest Earthquakes application supports most recent browsers. ![]() Holtkamp said Wednesday's earthquake was likely related to another powerful earthquake in the same area almost exactly a year ago, the Magnitude-7.6 Simeonof Island Earthquake of July 21, 2020, which struck about 45 miles (72 km) away. That particular section of the subduction zone, called the Aleutian megathrust, is a seismic hot spot, with thousands of earthquakes each year, according to the Alaska Earthquake Center. ![]() ![]() Alert delivery via the WEA system is available in. Wednesday's earthquake struck along a subduction zone where the Pacific plate dives under the North American plate, Holtkamp said. The USGS issues ShakeAlert Messages but alert delivery will come by other public and private means (internet, radio, television, cellular), including Wireless Emergency Alerts (WEA)- think of an AMBER Alert - delivered by FEMA’s Integrated Public Alert and Warning System (IPAWS). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |