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Irregular Recurrence of Large Earthquakes Along the San Andreas Fault: Evidence from Trees

Jacoby, Gordon C. and Sheppard, Paul R. and Sieh, Kerry E. (1988) Irregular Recurrence of Large Earthquakes Along the San Andreas Fault: Evidence from Trees. Science, 241 (4862). pp. 196-199. ISSN 0036-8075. http://resolver.caltech.edu/CaltechAUTHORS:20141223-082914156

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Abstract

Old trees growing along the San Andreas fault near Wrightwood, California, record in their annual ring-width patterns the effects of a major earthquake in the fall or winter of 1812 to 1813. Paleoseismic data and historical information indicate that this event was the "San Juan Capistrano" earthquake of 8 December 1812, with a magnitude of 7.5. The discovery that at least 12 kilometers of the Mojave segment of the San Andreas fault ruptured in 1812, only 44 years before the great January 1857 rupture, demonstrates that intervals between large earthquakes on this part of the fault are highly variable. This variability increases the uncertainty of forecasting destructive earthquakes on the basis of past behavior and accentuates the need for a more fundamental knowledge of San Andreas fault dynamics.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1126/science.241.4862.196DOIArticle
http://www.sciencemag.org/content/241/4862/196PublisherArticle
http://www.jstor.org/stable/1701140JSTORArticle
Additional Information:© 1988 American Association for the Advancement of Science. Received 16 March 1988; accepted 31 May 1988. We thank L. R. Sykes and E. R. Cook for reviews and L. O. White for field assistance. This work was supported by NSF grants EAR 85-19030 and EAR 87-07967 and U.S. Geological Survey grant 14-08- 0001-G1329 to G.C.J. and P.R.S. and U.S. Geological Survey grants 14-08-001-G1098 and G1370 to K.E.S. Lamont-Doherty Geological Observatory contribution No. 4326; California Institute of Technology Geological and Planetary Sciences Contribution No. 4644.
Funders:
Funding AgencyGrant Number
NSFEAR 85-19030
NSFEAR 87-07967
USGS14-08-0001-G1329
USGS14-08-001-G1098
USGS14-08-001-G1370
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Lamont-Doherty Geological Observatory4326
Caltech Division of Geological and Planetary Sciences 4644
Record Number:CaltechAUTHORS:20141223-082914156
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20141223-082914156
Official Citation:Irregular Recurrence of Large Earthquakes Along the San Andreas Fault: Evidence from Trees GORDON C. JACOBY JR., PAUL R. SHEPPARD, and KERRY E. SIEH Science 8 July 1988: 241 (4862), 196-199. [DOI:10.1126/science.241.4862.196]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53130
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:23 Dec 2014 16:40
Last Modified:23 Dec 2014 16:40

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