SYMPOSIA PAPER Published: 01 January 1996

Revisiting the Characterization of Seismic Hazard Using Geostatistics: A Perspective after the 1994 Northridge, California Earthquake


An indicator kriging model of seismic hazard for southern California, based on the time period 1930 – 1971, is developed. This hazard assessment is evaluated in light of the occurrence of more recent, moderate earthquakes: the 1987 Whittier Narrows, the 1990 Upland, and the 1994 Northridge earthquakes. The hazard map shows relatively poor spatial correlation between regions of high hazard and known, active faults. A hypothesis is developed, however, suggesting that high seismic hazard in southern California is a function of spatial proximity to all active faults, not to any one active fault.

Author Information

Carr, JR
University of Nevada, Reno, NV
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Developed by Committee: D18
Pages: 236–247
DOI: 10.1520/STP16124S
ISBN-EB: 978-0-8031-5337-0
ISBN-13: 978-0-8031-2414-1