Pacific Northwest Seismic Network



University of Washington, Department of Earth and Space Sciences
Box 351310
Seattle, WA 98195-1310


Earthquake Information: +1-206-543-7010
Voice (lab): +1-206-685-8180
Voice (department): +1-206-543-1190
Fax: +1-206-543-0489


Regional Partners


Damaging earthquakes are well known in the Pacific Northwest, including several larger than magnitude 7. In 1965, a magnitude 6.5 earthquake shook the Seattle, Washington, area causing substantial damage and seven deaths. This event spurred the installation of the Pacific Northwest Seismograph Network (PNSN) in 1969 to monitor regional earthquake activity. Starting with five seismometers the PNSN has grown to include over 220 seismograph stations in Washington and Oregon. The PNSN is centered at the University of Washington's Dept. of Earth and Space Sciences and operated jointly by the University of Washington and the University of Oregon. It is funded by the U.S. Geological Survey, U.S. Department of Energy, and the University of Washington.

The PNSN mission is to provide data and information products to help scientists study Pacific Northwest earthquake and volcanic hazards and to assist the emergency managers, press and public to understand and mitigate those hazards.  The PNSN collects and analyzes data for basic and applied research and to provide rapid and accurate information on earthquakes and volcanic activity in Washington and Oregon to emergency managers and the public after felt events.