The California Governor's Office Of Emergency Services has had a long-term interest in coordinated earthquake monitoring. The historical separation between northern and southern California and between strong-motion and weak-motion networks resulted in a complicated situation for earthquake response.
Advances in technology have made it possible to integrate existing, separate earthquake monitoring networks in California into a single seismic monitoring system. The California Geological Survey, Caltech Seismological Laboratory, Berkeley Seismological Laboratory, USGS Menlo Park, and the USGS Pasadena have agreed to cooperate in the effort of the CISN because of the obvious benefit to the State.
In FY 2001/2002, Governor Gray Davis requested support for the CISN. Funding for the California Geological Survey, Caltech and UC Berkeley was recently made available and CISN activities are underway.
The CISN Program Management Group produces reports on the status of the CISN:
Other OES links of interest: