Brief history, Current Activities & ARRA Improvements David Oppenheimer – USGS Menlo Park

What is the CISN? The California Integrated Seismic Network is a collaborative effort to integrate existing, separate California earthquake monitoring networks into a single seismic monitoring system. The CISN provides the organizational framework to coordinate these earthquake-monitoring operations. The CISN constitutes the California region within Advanced National Seismic System (ANSS).

Who is the CISN? Core members have primary responsibility for the recording and monitoring of earthquakes and the creation of CISN products –California Geological Survey –U.C. Berkeley Seismological Laboratory –Caltech Seismological Laboratory –Menlo Park USGS –Pasadena USGS –USGS National Strong Motion Program

Who is the CISN? UC Santa Barbara UC San Diego University of Nevada Reno CA Department of Water Resources Lawrence Livermore National Labs Calpine Cal Energy Lawrence Berkeley National Labs PG&E Plate Boundary Observatory Participating members contribute to CISN activities through data exchange.

CISN Goals Operate a reliable and robust statewide system to record earthquake ground motions over the relevant range of frequencies and shaking levels Distribute information about earthquakes rapidly after their occurrence for emergency response and public information Create an easily accessible archive of California earthquake data for engineering and seismological research, including waveform data and derived products

Brief History 11/2000 – core members sign MOA 2000 – Initial ANSS funding 2001 – Initial State funding 2003 – NC begins adoption of TriNet software 2003 – M6.5 San Simeon 2004 – CISN Display released 2004 – M6.0 Parkfield 2008 – ANSS endorses AQMS software 2008 – CESMD supersedes EDC 2009 – CISN runs common software M7.2 Baja

CISN Funding Total ~$16M

CISN Expenditures Expenditures for California Seismic Monitoring 7% 15% 47% 9% 12% 10% Process improvement new products New/Upgraded stations Operate and maintain stations DataCenters Real-time operations and response Management

Current Software Activities Earthquake Early Warning Metadata management Improved exchange of data with CESMD Station/Quake XML Improved analyst review Statewide ML analysis National support of AQMS

NetQuakes 106 Instruments installed in NC; 50 more to be installed Partnership with EBMUD for 7 dams National support for 135 instruments Siting Plan for 400 instruments in NC

ARRA Upgrades 48 dataloggers by UC Berkeley 8 dataloggers by the NCSN

The SCSN ARRA Project includes upgrades at 178 stations. As of 1 October 2010, we have completed work on more than 93 stations. - Cumulative histogram is shown below - White circles on the map represent stations that have been upgraded -Project completion date is 14 Sept Datalogger & Sensor types Listed above

More info at