CISN label
CGS | USGS | Caltech | CalEMA | UCB

Earthquake Information

The CISN is dedicated to improving seismic monitoring through statewide coordination, robust operation, rapid and reliable earthquake reporting, and seamless access to earthquake and engineering strong-motion information archives.

Note: In addition to Web-based access to earthquake information below, first responders, emergency managers, and critical lifeline organizations may want to explore two software packages that provide reliable access to earthquake information from the CISN and other networks. Please see software for earthquake notification.

Felt Reports
CISN Earthquake Reports
Data Centers
Earthquake Maps & Lists
Searchable earthquake catalogs
Signup for earthquake notification

California Integrated Seismic Network

CGS USGS OES Caltech UC Berkeley