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Coseismic steps recorded on creep meters along the San Andreas Fault

1977; American Geophysical Union; Volume: 82; Issue: 11 Linguagem: Inglês

10.1029/jb082i011p01655

2156-2202

Chi‐Yu King, Robert D. Nason, R. O. Burford,

Seismic Waves and Analysis

Journal of Geophysical Research (1896-1977)Volume 82, Issue 11 p. 1655-1662 Coseismic steps recorded on creep meters along the San Andreas Fault Chi-Yu King, Chi-Yu KingSearch for more papers by this authorRobert D. Nason, Robert D. NasonSearch for more papers by this authorRobert O. Burford, Robert O. BurfordSearch for more papers by this author Chi-Yu King, Chi-Yu KingSearch for more papers by this authorRobert D. Nason, Robert D. NasonSearch for more papers by this authorRobert O. Burford, Robert O. BurfordSearch for more papers by this author First published: 10 April 1977 https://doi.org/10.1029/JB082i011p01655Citations: 22AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Creep meters spanning an active trace of the San Andreas fault in central California recorded many apparent fault-slip steps at times of moderate local earthquakes of magnitudes 4–5. These steps are small, (less than 1 mm) but are recorded over long fault segments (tens of kilometers). The corresponding strain steps, ranging from 10−5 to 10−4, are about 2 orders of magnitude larger than those calculated from the seismically determined source parameters on the assumption of uniform crustal materials. These anomalously large coseismic steps may be due to low effective rigidity of the fault gouge zone or to seismically triggered secondary surface breaks that occurred along the fault. References Achenbach, J. D., A. M. Abo-Zena, Analysis of the dynamics of strike-slip faulting, J. Geophys. Res., 78, 866–875, 1973. Alewine III, R. W., T. H. Heaton, Tilts associated with the Pt. Mugu earthquake, Proceedings of the Conference on Tectonic Problems of the San Andreas Fault System, Stanford Univ. Publ. Geol. Sci., 13, 94–103, 1973. Allen, C. R., M. Wyss, J. N. Brune, A. Grantz, R. E. Wallace, Displacements on the Imperial, Superstition Hills, and San Andreas faults triggered by the Borrego Mountain earthquake, U.S. Geol. Surv. Prof. Pap., 787, 87–104, 1972. 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Citing Literature Volume82, Issue11Solid Earth and Planets10 April 1977Pages 1655-1662 ReferencesRelatedInformation