Recent natural and manmade seismic activity. Click figure for details.
Quakes Near Volcanoes
Seismicity in Last 30 Days
Volcanoes without recent seismicity
Posted by A. Ling, 09/29/2014
Mount Ontake in Japan erupted without warning on Saturday. UW geologist George Bergantz explains the sudden eruption of Japan's Mount Ontake on King 5 news. This type of eruption, known as phreatic eruption, is uncommon, but it could happen in Washington.
Posted by S. Malone, 09/01/2014
Posted by S. Malone, 08/24/2014
Posted by S. Malone, 08/14/2014
MarketPlace news has a report on the "controversy" between a private version of EEW and the US Geological Survey sponsored version (in which the PNSN is participating). While there are some mistakes in this report it does summarize some important issues: a cheap, semi-secret, private EEW versus a more expensive, open-information, public EEW.
Latest Seismo Blog Posts
October 16, 2014
by Angel Ling
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.