Welcome to the CISN

The California Integrated Seismic Network (CISN) is a partnership among federal, state, and university agencies involved in California earthquake monitoring. The CISN is dedicated to serve the emergency response, engineering, and scientific communities. The CISN is a region of the Advanced National Seismic System.

11/13/08 Great Southern California Shake-Out
To download the Shake-out simulation, click here:

Conference: Earthquake Hazards in the Eastern San Francisco Bay Area (Oct 22-24)

09/05/2008: Mw 4.0 Alamo, East of San Francisco Bay

07/29/2008: Mw 5.4 near Chino Hills, Los Angeles Basin

02/21/2008: Mw 6.0 near Wells, NV: Moment tensor and Finite Fault

10/30/2007: Mw 5.4 near Alum Rock, Bay Area

Part of the Advanced National Seismic System