After years in development, an earthquake early warning system known as ShakeAlert is on the cusp of being released in Oregon and Washington. The system that spans the West Coast was launched in California in late 2019. It launches to the public in Oregon on March 11, the 10th anniversary of the Tohoku earthquake and tsunami, and in Washington in May. (more…)
Tag Archives: tohoku earthquake
Sunday marks the one-year anniversary of the great Tohoku earthquake and tsunami that devastated Japan, killing more than 16,000 people and causing billions of dollars in damage.
University of Washington scientists say the event has some important lessons for the Pacific Northwest – most notably, not that a similar event can happen here but that it WILL happen here, and that this region is still much less prepared than Japan was a year ago. (more…)
*Samples of rock, sediment from beneath the sea-floor help explain quakes like Japan’s*
New samples of rock and sediment from the depths of the eastern Pacific Ocean may help explain the cause of large, destructive earthquakes similar to the Tohoku Earthquake that struck Japan in mid-March.
Nearly 1,500 meters (almost one mile) of sediment cores collected from the ocean floor off the coast of Costa Rica reveal detailed records of some two million years of tectonic activity along a seismic plate boundary. (more…)
Japan’s recent magnitude 9.0 earthquake, which triggered a devastating tsunami, relieved stress along part of the quake fault but also has contributed to the build up of stress in other areas, putting some of the country at risk for up to years of sizeable aftershocks and perhaps new main shocks, scientists say.
After studying data from Japan’s extensive seismic network, researchers from the Woods Hole Oceanographic Institution (WHOI), Kyoto University and the U.S. Geological Survey (USGS) have identified several areas at risk from the quake, Japan’s largest ever, which already has triggered a large number of aftershocks. (more…)