Recent Earthquakes

Recent natural and manmade seismic activity.  Click figure for details.

 Quakes Near Volcanoes

Seismicity in Last 30 Days

Volcano Earthquakes
St. Helens
30 Days Ago Now

Volcanoes without recent seismicity

Adams, Baker, Jefferson, Crater Lake, Glacier Peak, Three Sisters

Seahawk Fans Generate Seismic Activities

Posted by A. Ling, 01/22/2015

UW Today: UW seismologists couldn’t have asked for a better football game to monitor fan-generated stadium shaking. The Seahawks’ improbable comeback victory in Sunday’s NFC Championship Game showed the biggest vibrations ever recorded at CenturyLink Field ― the Dance Quake.

Scientists to Track Effects of Fans at Seahawks-Panthers Game

Posted by A. Ling, 01/09/2015

PNSN made it to the New York Times for the very first time! The story detailing our install at CenturyLink Field for the NFC playoff games.

PNSN recording Seahawk fans in the press

Posted by S. Malone, 01/07/2015

UW Today press release was sent out today and will certainly be followed by many news stories about our plans to make seismic recordings of the shaking of CenturyLink Field due to fan enthusiam during the playoff games.

Indian Ocean Tsunami Warning System - 10 years later

Posted by S. Malone, 12/26/2014

The United Nations News Center reports on the state of the tsunami warning system for the Inidan Ocean 10 years after the most devistating tsunami in history. Other reports include: UNESCO report on monitoring; Wikipedia; and "after & now" from the BBC.

Latest Seismo Blog Posts

The Seattle Seahawks' win over the Green Bay Packers in over time ended up so exciting that many of us serious scientists forgot to be serious and analyze the seismograms. Yikes! What a crazy ending. In fact, most of the game was seismically quiet (and disheartening for Seahawk fans), but the final half hour produced several seismic events that challenges the original "Beast Quake" for seismic supremacy. For our semi-scientific analysis......

Panther versus Seahawk Game Analysis

January 11, 2015

by Steve Malone

Both the PNSN experiment and the Seahawks were successful Saturday evening. Both got off to a slow start. The PNSN QuickShake display had several bad dropouts during the first half and at half-time the Seahawks were only ahead by four points. When working properly QuickShake provided us with "early Warning" of a successful play that would show up on TV a few seconds later. None of the signals compared to the size of those during the original "Beast Quake" of 2011 but some interesting patterns were seen. For more detailed analysis.....

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.