Skip to main content
U.S. flag

An official website of the United States government

Seismic slip, segmentation, and the Loma Prieta Earthquake

August 1, 1990

We have plotted the cumulative seismic slip projected onto a vertical plane for earthquakes occurring during the last 20 years along 210 km of the San Andreas fault that includes the section that moved in the Loma Prieta earthquake. These plots illustrate the differences in depth and character of the seismicity between the locked and creeping portions of the fault or fault zone and define the segment upon which the Loma Prieta earthquake occurred. Working by analogy from the relation between pre-main shock microseismicity and presumed main shock slip regions at Parkfield and Loma Prieta, we identify a segment on the San Francisco Peninsula where we believe the M 7 1838 earthquake occurred, and which we believe may have accumulated sufficient strain that rupture should be expected in the coming decades.

Publication Year 1990
Title Seismic slip, segmentation, and the Loma Prieta Earthquake
DOI 10.1029/GL017i009p01449
Authors Geoffrey C.P. King, Allan Goddard Lindh, David H. Oppenheimer
Publication Type Article
Publication Subtype Journal Article
Series Title Geophysical Research Letters
Index ID 70242671
Record Source USGS Publications Warehouse