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The Southern California Integrated GPS Network (SCIGN)

Kenneth W. Hudnut, Yehuda Bock, John E. Galetzka, Frank H. Webb, & William Young

Published 2002, SCEC Contribution #845

This paper describes the fundamental scientific and observational goals of the Southern California Integrated GPS Network (SCIGN). It also reviews the organizational structure, the project management, and important policies. Recent accomplishments are also discussed in some detail, in particular the effective response following the October 16, 1999 Hector Mine earthquake (Mw7.1). The scientific motivation for establishing a continuous GPS network to observe time transient crustal deformation is dis cussed in detail, especially as it pertains to the 1990’s sequence of fault interaction and postseismic deformation in the eastern California shear zone. As of March 2000, more than 170 SCIGN stations are operating; 105 of the newest stations were installed by a contractor. During the past year, reconnaissance and permitting of stations for the network has continued; locations have now been selected for all of the sites and the design of the network is complete. The implementation in continuing and construction of the 250 station network is projected to be completed during the next 6-9 months. The final phase of network construction is underway at a rate of 2 new stations per week.

Hudnut, K. W., Bock, Y., Galetzka, J. E., Webb, F. H., & Young, W. (2002). The Southern California Integrated GPS Network (SCIGN). In Hudnut, K. W., & Bock, Y. (Eds.), Seismotectonics in Convergent Plate Boundary, (, pp. 167-189) Tokyo, Japan: TERRAPUB