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Statistical properties of seismicity of fault zones at different evolutionary stages

Hillers, G. and Mai, P. M. and Ben-Zion, Y. and Ampuero, J.-P. (2007) Statistical properties of seismicity of fault zones at different evolutionary stages. Geophysical Journal International, 169 (2). pp. 515-533. ISSN 0956-540X. doi:10.1111/j.1365-246X.2006.03275.x.

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We perform a systematic parameter space study of the seismic response of a large fault with different levels of heterogeneity, using a 3-D elastic framework within the continuum limit. The fault is governed by rate-and-state friction and simulations are performed for model realizations with frictional and large scale properties characterized by different ranges of size scales. We use a number of seismicity and stress functions to characterize different types of seismic responses and test the correlation between hypocenter locations and the employed distributions of model parameters. The simulated hypocenters are found to correlate significantly with small L values of the rate-and-state friction. The final sizes of earthquakes are correlated with physical properties at their nucleation sites. The obtained stacked scaling relations are overall self-similar and have good correspondence with properties of natural earthquakes.

Item Type:Article
Related URLs:
URLURL TypeDescription
Mai, P. M.0000-0002-9744-4964
Ben-Zion, Y.0000-0002-9602-2014
Ampuero, J.-P.0000-0002-4827-7987
Additional Information:© 2007 The Authors. Journal compilation © 2007 RAS. Accepted 2006 October 23. Received 2006 October 23; in original form 2006 May 19. Published Online: 21 March 2007. The manuscript benefited from useful comments by two anonymous reviewers. The work was sponsored by EC-Project RELIEF (EVG1-CT-2002-00069) and the Southern California Earthquake Center (based on NSF cooperative agreement EAR-8920136 and United States Geological Survey cooperative agreement 14-08-0001-A0899). This is contribution number 1442 of the Institute of Geophysics, ETH Zurich.
Group:Seismological Laboratory
Funding AgencyGrant Number
European CommissionEVG1-CT-2002-00069
Subject Keywords:crustal deformation; dynamics; earthquakes; fault model; seismicity
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Other Numbering System NameOther Numbering System ID
ETH Zurich, Institute of Geophysics1442
Issue or Number:2
Record Number:CaltechAUTHORS:HILjgi07
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:13461
Deposited By: Tony Diaz
Deposited On:13 Aug 2009 19:58
Last Modified:08 Nov 2021 22:38

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