CISN: California Integrated
Seismic Network
The Program Management Group (PMG):
Tony Shakal – CGS
David Oppenheimer – USGS Menlo Park
Peggy Hellweg & Doug Neuhauser – UC Berkeley
Egill Hauksson - Caltech
Doug Given – USGS Pasadena
CISN Advisory Meeting Jan. 28, 2009
CISN Goals
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Operate a reliable and robust statewide system
to record earthquake ground motions over the relevant
range of frequencies and shaking levels
Rapidly distribute information
about earthquakes 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
Develop new algorithms
for analyzing earthquake data and creating new user
products by applying the latest research and
technological discoveries.
(from Strategic Plan)
Who is the CISN?
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Core members
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USGS (Pasadena & Menlo Park)
Caltech
UC Berkeley
Calif. Geological Survey (CSMIP)
Calif. Office of Emergency Services
Participating entities
(real-time data contributors)
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UC San Diego
UC Santa Barbara
University of Nevada Reno
Calif. Dept. of Water Resources
Lawrence Livermore National Labs
Lawrence Berkeley National Labs
PG&E
EarthScope - US Array/PBO
Calpine
CalElectric
CISN is One of the 7 ANSS Regions
Alaska
Pacific
Northwest
Northeast
Inter-Mountain
West
California
Hawaii
Mid-America
CISN Statewide Monitoring
Station Inventory
Urban Strong Motion
974
Broadband + Strong Motion
210
Short Period + Strong Motion
Short Period (“analog”)
77
500
Borehole
51
Geotechnical Arrays
22
Buildings
221
Bridges
70
Dams
26
Others
13
Stations: New & Upgraded
(since our last meeting)
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New Broadband stations
USArray stations retained
Upgraded stations
Newly telemetered stations
Newly imported stations
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CalEnergy (EN)
PG&E (PG)
2
5
6
6
8
4
Three Rotational Seismometers
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Millikan Library (2) and Garner Valley
Eentec R-1 triaxial rotational velocity sensors
0.05 – 20/50 Hz bandwidth
50V per radian/sec
~0.1 radian/sec clip
Hector Mine aftershock Mw 5.1
MHDP: Southern San Andreas Build-out
CI.SNO
• 20km spacing
• BB, SM, GPS
• 11 new sites
• 6 upgraded sites
• low data latency
• on-site computer
CISN Software System
FY 2008 Accomplishments
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Leap second compliance finished
All code in SVN repository
TRAC documentation begun
Reference system completed
Many improvements & bug fixes
CISN Software Status
FY 2008 Accomplishments
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Northern California center
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Southern California center
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post processing done, real-time soon
In process of upgrade to leap-second version
Other ANSS regional networks
running at HVO
 will be installed at UW and UU this year
 CERI & LDEO this year or next
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Other Accomplishments
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Continuing support of
Earthquake Early Warning
Statewide ML calibration
Handled Alum Rock & Chino Hills (Mw 5.4s)
Helped NESMP converted 90 channel
Factor Building Array to USGS operation
CIT hosted ANSS NetOps workshop
Participated in ShakeOut
Other Developments
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ANSS Network performance standards
NSMP free-field site adoption
ANSS Waveform Archive – RFP is open
Metadata Repository in Golden
Seismic equipment depot at ASL
Last Year’s Action Items
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Modify MOU to alloy chair 3rd term. – Done
PMG to document Japanese EEW spending.
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Document steps toward EEW
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$500M initial, $23M/yr + $120M upgrade/10yr
Draft EEW plan done
Address ShakeMap issues
Provide talking points for Dick McCarthy’s
trip to Japan. - Done
Hasta la vista, baby!