Recent Earthquakes
Recent natural and manmade seismic activity. Click figure for details.
Quakes Near Volcanoes
Seismicity in Last 30 Days
| Volcano | Earthquakes |
|---|---|
| Rainier | |
| St. Helens | |
| Hood | |
| Newberry | |
| Sisters | |
| 30 Days Ago Now |
Volcanoes without recent seismicity
ShakeAlert: Earthquake Early Warning Simulations
Posted by A. Ling, 02/12/2015
ShakeAlert, the Pacific Northwest region's Earthquake Early Warning System, has begun testing by selected users. These videos show the example simulations of a M8.0 Cascadia offshore earthquake and the 2001 M6.8 Nisqually earthquake on PNW ShakeAlert User Display.
2001 M6.8 Nisqually Earthquake
M8.0 Cascadia offshore earthquake
Earthquake Early Warning Test Planned
Posted by S. Malone, 02/11/2015
The Seattle Times has a report on PNW Earthquake Early Warning's first test.
Earthquake early warning begins testing in Pacific Northwest
Posted by A. Ling, 02/11/2015
UW News: The first early earthquake warning system for the region has begun testing with a small group of users at businesses and public agencies.
Oklahoma is more seismic than California?
Posted by S. Malone, 02/09/2015
The Center for Investigative Reporting, based on the ANSS comprehensive earthquake catalog, says the number of magnitude 3 or greater earthquakes in Oklahoma is three times more than in California.
Latest Seismo Blog Posts
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.
