Recent natural and manmade seismic activity. Click figure for details.
Quakes Near Volcanoes
Seismicity in Last 30 Days
|30 Days Ago Now|
Volcanoes without recent seismicity
Posted by S. Malone, 04/11/2014
A series of large earthquake including the case where an "aftershock" (M=6.6) is larger than what was thought to be the "mainshock" (M=6.1). Many different news articles including: ABC news, Christian Science Monitor, CBS news, and others.....
Posted by B. Steele, 04/08/2014
Earthquakes occur east of the Cascades. A recent study looks at the costs.
Posted by B. Steele, 04/07/2014
Fifty years after the landmark 9.2 Alaska earthquake and tsunami Chile experiences another great earthquake. The Alaska quake got scientists thinking about Cascadia. NY Times
Posted by B. Steele, 03/27/2014
There was plenty of warning before the deadly Washington landslide. Why didn't it help?
Latest Seismo Blog Posts
March 26, 2014
by Kate Allstadt
March 17, 2014
by Steve Malone
The PNSN reduces risk within the states of Washington and Oregon by
- monitoring ground motions within the region in order to better understand earthquake and volcano hazards and their impacts on the physical, economic, political, and social environment,
- providing the most accurate information about earthquakes and volcanoes as rapidly as possible to public officials, the public, and for education, and
- advocating comprehensive and cost-effective measures for reducing the harmful effects of earthquakes and volcanoes.