Sensors that detect changes in atmospheric pressure due to ground shaking can also obtain data about large earthquakes and explosions that exceed the upper limit of many seismometers, according to new research. The sensors, which detect inaudible infrasounds carried through the air, could improve tsunami warnings and other emergency responses while also lowering costs. Research […]
A tsunami warning was issued by the National Tsunami Warning Center in Palmer following a heavy earthquake with a preliminary magnitude assessment of 7.5 that occurred 55 miles southeast of Sandpoint at 12:55 pm on Monday afternoon. The depth of the quake was at 25 miles along the Aleutian megathrust and occurred on the […]
A 5.8 magnitude earthquake shook the inhabitants of the southern Kenai Peninsula and Kodiak Island awake at 1:52 am. While the quake was quite significant, the tsunami center reported that no tsunami is expected. The shaker was generated at a depth of 40 miles beneath the mouth of Cook Inlet near the Barren Islands […]
Another large aftershock shook the Anchorage metropolitan area awake at 7:45 am on Sunday morning. The quake, measured at 5.0, was generated 9.3 miles to the northwest of Anchorage across the inlet from the city. It was calculated to have its origins 28 miles beneath the surface. The shaker was felt throughout the south-central area […]