Pnsn.org – Pacific Northwest Seismic Network
Pnsn.org is the official website of the Pacific Northwest Seismic Network (PNSN), an American organization that collects and studies ground motions from almost 400 seismometers in Oregon and Washington in order monitor volcanic and tectonic activity. This information is used in order to advice and alert about possible earthquake hazards in the area. Here you can learn everything about them including history and mission. All their...