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

Baker, Jefferson, Crater Lake, Newberry

Where is my Early Warning?

Posted by S. Malone, 10/09/2015

Michelle Quinn has a cute article about Earthquake Early Warning services in the San Jose Mercury News and what is holding it up.

Seattle URMs vulnerable to shaking

Posted by S. Malone, 08/10/2015

Earthquake information in Seattle:

The Seattle Times has a good article on City's old brick buildings could see huge damage in big quake.

Northwest Public Radio and NPR Stations KUOW and KPLU covered the visit of Senator Murray and Representative Kilmer to the PNSN labs on Monday and KIRO TV has raw footage of the press conference.

"The Really Big One" Public Forum

Posted by A. Ling, 07/31/2015

A public forum on earthquake hazards and preparedness in the Pacific Northwest will be held at Unviersity of Oreogn on August 6 from 7pm to 9pm. The event will be streamed live on the Internet via the UO Channel and you can follow the discussion on Twitter at ‪#‎TheReallyBigOne‬.

USGS Funding Boost on West Coast Earthquake Early Warning

Posted by A. Ling, 07/30/2015

The USGS announced $5 million in funding that will allow the University of Washington, California Institute of Technology, UC Berkeley, and University of Oregon to help transition the prototype ShakeAlert earthquake early warning system, under development since 2005, into a public-facing tool. The Seattle Times and UW News report the annoucement.

Latest Seismo Blog Posts

The July 2015 New Yorker article “The Really Big One,” by Kathryn Schulz, shook up the Pacific Northwest (PNW) more than any earthquake has since the Magnitude-6.8 Nisqually earthquake in 2001. In the article’s most dooming statement, the head of the Cascadia FEMA division was quoted saying, “everything west of I-5 will be toast.” This assertion scared the living daylights out of PNW residents, creating a sense of terror and hopelessness that was the antithesis of what the article meant to do: to spur the region into preparing for this potentially devastating event.

Unusual earthquake swarm south of Bend, OR

October 23, 2015

by Steve Malone

A somewhat unusual earthquake swarm started early on Oct 22, 2015 in an area about 65 km (40 miles) southwest of Bend, OR (25 km WSW of La Pine, OR). 36 events have been detected and located by the PNSN as of noon on Oct. 23, the largest only Magnitude 2.5. This ongoing swarm is in the same area that had similar swarms in 2001 and 2012 and is likely just the same sort of thing taking place again. For more details and updates....

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.