UNCLASSIFIED

U.S. GEOLOGICAL SURVEYSouthern California Seismic Network

(USGS/SCSN)

Prepared by

Gary Cone

UNCLASSIFIED 2

USGS/SCSN

PROGRAM DESCRIPTION: Installation, Modification, Operation, and Maintenance of Southern California Earthquake Monitoring Networks.

WHO’S YOUR CUSTOMER: U.S. Geological Survey

CONTRACT VALUE: 3.2M with 12% Fee; ROS 10.7%

PERIOD OF PERFORMANCE: 9/1/2003 through 8/31/2008

DATE OF NEXT RECOMPETE: 9/1/2008

KEY PERFORMANCE METRICS: • HTSI incumbent for 17 years• Assumed computer systems

management in 1995

FUTURE OPPORTUNITIES: • Software Developer if funding permits

OPPORTUNITIES & RISKS:• Contract funded through Jan 2004• Network operations uncertain due to

funding issues with state and federal budgets

UNCLASSIFIED 3

USGS/SCSN FINANCIAL

UNCLASSIFIED 4

USGS/SCSN PROGRAM DESCRIPTION

INSTALLATION, MODIFICATION, OPERATION AND MAINTENANCE OF SOUTHERN CALIFORNIA EARTHQUAKE MONITORING NETWORKS:

•Seismic Network – Analog and Digital

•GPS Network

•Computer System Administration

UNCLASSIFIED 5

USGS/SCSN MAJOR FAULTSUSGS/SCSN MAJOR FAULTS

UNCLASSIFIED 6

USGS/SCSN SAN ANDREAS FAULT

UNCLASSIFIED 7

USGS/SCSN ANALOG & DIGITAL STATIONSUSGS/SCSN ANALOG & DIGITAL STATIONS

UNCLASSIFIED 8

USGS/SCSN SEISMIC STATION PHOTOS

UNCLASSIFIED 9

USGS/SCSN SEISMIC STATION PHOTOS

UNCLASSIFIED 10

USGS/SCSN SEISMIC STATION PHOTOS

UNCLASSIFIED 11

USGS/SCSN SEISMIC STATION PHOTOS

UNCLASSIFIED 12

USGS/SCSN SEISMIC STATION PHOTOS

UNCLASSIFIED 13

USGS/SCSN INTENSITY MAP

UNCLASSIFIED 14

USGS/SCSN EARTHQUAKE MAP

UNCLASSIFIED 15

USGS/SCSN GPS STATIONS

UNCLASSIFIED 16

USGS/SCSN GPS DESCRIPTION

GPS GPS –– Global Positioning SystemGlobal Positioning System

GPS is a U.S.-built constellation of navigation satellites

Normally it is used for ‘coarse’ positioning– Handheld GPS units (~$100-$500)

C/A code only ~6 meter precision (with SA turned off)

We ‘earthquake people’ do precise GPS– Top-notch GPS receivers (~$8,000)

P-code and phase on both L1 & L2 Differential phase - several millimeter

precision (1000x better!)

Wide range of uses for GPS data provided by SCIGN

UNCLASSIFIED 17

USGS/SCSN GPS USES

GPS is now vital to earthquake monitoring(array technology and GPS satellites were

developed in Southern California)

GPS is now vital to earthquake monitoringGPS is now vital to earthquake monitoring(array technology and GPS satellites were(array technology and GPS satellites were

developed in Southern California)developed in Southern California)

Measures buildup of strain on faults due to accumulating tectonic motion

Used to detect damage to large engineered structures such as dams, and effects of ground tilt and subsidence on water systems

Can be used in real-time to detect fault slip at surface, for early warning system

UNCLASSIFIED 18

USGS/SCSN GPS SITES

UNCLASSIFIED 19

USGA/SCSN GPS/SEISMIC SITE

UNCLASSIFIED 20

USGS/SCSN COMPUTER SYSTEMS

SYSTEM ADMIMISTRATION FOR:

•Online systems

•Development and desktop machines

•Web servers for Pasadena

•Web servers for Western Region web site in Menlo Park

•Web servers for National Earthquake Hazards Program

•Mailing list servers