The USGS ShakeAlert® Earthquake Early Warning System was made available in Oregon on March 11, a date that coincides with the 10th anniversary of the magnitude 9.1 Great Tohoku, Japan earthquake.
Like Japan, a subduction zone lies off the coast of Oregon, capable of generating M 9.0 earthquakes and a resulting tsunami of up to 100 feet in height that will impact the coastal area. There have been 41 earthquakes in the last 10,000 years…