SCSN - The Southern California Seismic Network

Under various names, the Southern California Seismic Network or SCSN, has been monitoring earthquakes in Southern California since the 1920’s. Currently, using seismometers at over 396 sites, we monitor ground motion from the U.S./Mexico border north to a line which passes approximately through San Luis Obispo and Big Pine. Of the 396 sites, more than 50 are imported from other seismic networks. Instrumentation includes simple short-period vertical stations, modern broad-band stations, and accelerometers. We import data from University of California San Diego’s Anza Network, the University of California Berkeley Seismological Laboratory, and the University of Nevada at Reno’s Seismological Laboratory, to help locate our earthquakes.
Photo © Copyright 2004, California Institute of Technology. All Rights Reserved.	The Southern California Seismic Network (SCSN) is a cooperative project of Caltech and the US Geological Survey. The SCSN has benefited from numerous upgrade projects. TERRAscope, funded by the L. K. Whittier and ARCO Foundations, and NSF, provided the first 28 broadband and strong motion stations in the late 1980s and early 1990s. The TriNet project, 1997 to 2002, funded by FEMA, California OES, USGS, and other partners, increased the number of broadband and strong motion stations to 155 and significantly improved the data communications and processing infrastructure. The California Integrated Seismic Network (CISN) project of Caltech, CGS, USGS, and U.C. Berkeley (2001 to present) provides funds for continued operation of the SCSN, improved robustness, and migration of operations toward statewide processing. All data are recorded by computers at Caltech. Earthquakes are detected, picked, located and assigned a magnitude in near-real time. Our data are archived and distributed to the research and general public by the Southern California Earthquake Data Center. The Southern California Earthquake Data Center (SCEDC), funded by the Southern California Earthquake Center (SCEC) and other sources, holds the complete data archives for SCSN/CISN from 1932 to present. The SCSN operates one IRIS/GSN station, PAS in Pasadena, California. If you use SCSN data, please include a citation to "Southern California Seismic Network operated by Caltech and USGS" in your work.

Under various names, the Southern California Seismic Network or SCSN, has been monitoring earthquakes in Southern California since the 1920’s.

Currently, using seismometers at over 396 sites, we monitor ground motion from the U.S./Mexico border north to a line which passes approximately through San Luis Obispo and Big Pine. Of the 396 sites, more than 50 are imported from other seismic networks. Instrumentation includes simple short-period vertical stations, modern broad-band stations, and accelerometers. We import data from University of California San Diego’s Anza Network, the University of California Berkeley Seismological Laboratory, and the University of Nevada at Reno’s Seismological Laboratory, to help locate our earthquakes.

The Southern California Seismic Network (SCSN) is a cooperative project of Caltech and the US Geological Survey. The SCSN has benefited from numerous upgrade projects. TERRAscope, funded by the L. K. Whittier and ARCO Foundations, and NSF, provided the first 28 broadband and strong motion stations in the late 1980s and early 1990s. The TriNet project, 1997 to 2002, funded by FEMA, California OES, USGS, and other partners, increased the number of broadband and strong motion stations to 155 and significantly improved the data communications and processing infrastructure. The California Integrated Seismic Network (CISN) project of Caltech, CGS, USGS, and U.C. Berkeley (2001 to present) provides funds for continued operation of the SCSN, improved robustness, and migration of operations toward statewide processing.

All data are recorded by computers at Caltech. Earthquakes are detected, picked, located and assigned a magnitude in near-real time. Our data are archived and distributed to the research and general public by the Southern California Earthquake Data Center. The Southern California Earthquake Data Center (SCEDC), funded by the Southern California Earthquake Center (SCEC) and other sources, holds the complete data archives for SCSN/CISN from 1932 to present. The SCSN operates one IRIS/GSN station, PAS in Pasadena, California.

If you use SCSN data, please include a citation to "Southern California Seismic Network operated by Caltech and USGS" in your work.


	Web www.scsn.org