The Pacific Northwest Seismic Network, or PNSN, collects and studies ground motions from about 400 seismometers in the U.S. states of Oregon and Washington.
PNSN monitors volcanic and tectonic activity, gives advice and information to the public and policy makers, and works to mitigate earthquake hazard.
The M6.5 1965 Puget Sound earthquake shook the Seattle, Washington, area, causing substantial damage and seven deaths.
This event spurred the installation of the Pacific Northwest Seismic Network in 1969 to monitor regional earthquake activity.
[4] The president's budget for the fiscal year commencing October 1, 2018, calls for reductions in funding and staff for the early warning notification program.