Northern California Seismic System: UC Berkeley, USGS Menlo Park, and Partners


Mailing Address

U.S. Geological Survey
345 Middlefield Road
MS 977
Menlo Park, CA 94025
UC Berkeley Seismological Lab
307 McCone Hall
Berkeley, CA 94720-4760


USGS: +1-650-329-4085
UC Berkeley: +1-510-642-3977


Regional Partners


The mission of the California Integrated Seismic Network (CISN) is to operate a reliable, modern, statewide system for earthquake monitoring, research, archiving, and distribution of information for the benefit of public safety, emergency response, and loss mitigation. Further, the CISN seeks to mitigate the impact of future earthquakes by collecting, processing, and disseminating critical earthquake information in a timely way.