pg&e and cisn: an earthquake country partnership
DESCRIPTION
PG&E and CISN: An Earthquake Country Partnership. Stu Nishenko CISN Advisory & Steering Committees Meeting October 13, 2010 Sacramento CA. PG&E Strong Motion Network Partnership with CGS Central Coast Seismic Net Partnership with USGS 2003 San Simeon earthquake - PowerPoint PPT PresentationTRANSCRIPT
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PG&E and CISN: An Earthquake Country Partnership
Stu Nishenko
CISN Advisory & Steering Committees MeetingOctober 13, 2010 Sacramento CA
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• PG&E Strong Motion Network • Partnership with CGS
• Central Coast Seismic Net• Partnership with USGS• 2003 San Simeon earthquake• Digital upgrade
• 2010 Eureka earthquake • ShakeMaps guide PG&E response
• 2010 San Bruno gas explosion
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DCPP
PG&E Central Coast Seismic Network (CCSN)
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Original analog site
DCPP
Completed digital upgrade
To be upgraded in 2010-2011
New digital site
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Hosgri.
DCPPSan A
ndreas
Seismicity recorded by PG&E and the US Geological Survey1987- July 2010
M6.5 San Simeon
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Acceleration data from the CCSN network now used in regional ShakeMaps
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• Project is to replace old analog telemetry with digital velocity and acceleration recorders and digital telemetry.
• Addition of accelerometers provides on-scale recordings of large earthquakes.
• Increased dynamic range from digital telemetry improves small earthquake recordings, as well.
• Remote access to station data for status and parameters saves time and money on maintenance .
• Recorders at stations provide backup if telemetry goes down.
CCSN Digital Upgrade 2006-2011
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San Bruno blast
10
Blast Area
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Thank You!