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A New Strategy to Compare Inverted Rupture Models Exploiting the Eigenstructure of the Inverse Problem

Gallovič, F. and Ampuero, J.-P. (2015) A New Strategy to Compare Inverted Rupture Models Exploiting the Eigenstructure of the Inverse Problem. Seismological Research Letters, 86 (6). pp. 1679-1689. ISSN 0895-0695. http://resolver.caltech.edu/CaltechAUTHORS:20151204-094810051

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Abstract

Finite-fault-slip inversions provide crucial information on earthquake rupture phenomena. Many slip-inversion methods exist and differ in how the rupture model is parameterized and which regularizations or constraints are applied (e.g., Ide, 2007, and references therein). Some methods are utilized even routinely for large earthquakes and published online (e.g., the U.S. Geological Survey website http://earthquake.usgs.gov/, last accessed August 2015). However, the slip-inversion results obtained by various authors for the same event may differ (e.g., Clévédé et al., 2004). There is currently no consensus about which slip-inversion method is preferable, and there are concerns about the reliability of the inferred source models due to the nonuniqueness or ill conditioning of the inverse problem (Hartzell et al., 2007; Zahradník and Gallovič, 2010; Gallovič and Zahradník, 2011; Shao and Ji, 2012). Therefore, slip inversion is still a subject of active research.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1785/0220150096DOIArticle
http://srl.geoscienceworld.org/content/86/6/1679PublisherArticle
http://www.seismosoc.org/Publications/SRL/SRL_86/srl_86-6_gallovic_and_ampuero-esupp/PublisherSupplemental Material
ORCID:
AuthorORCID
Ampuero, J.-P.0000-0002-4827-7987
Additional Information:© 2015 Seismological Society of America. Published Online 16 September 2015. We are grateful to all the participants in the Source Inversion Validation (SIV) benchmarks and to Martin Mai for his leadership in the SIV project, without whom this study would have been impossible. The article benefited from comments and suggestions by two anonymous reviewers. We acknowledge financial support from the Czech Science Foundation project 14-04372S, the Charles University project UNCE 204020/2012, the National Science Foundation (NSF) CAREER Award EAR-1151926, and the Southern California Earthquake Center (which is funded by NSF Cooperative Agreement EAR-1033462 and U.S. Geological Survey Cooperative Agreement G12AC20038).
Group:Seismological Laboratory
Funders:
Funding AgencyGrant Number
Czech Science Foundation14-04372S
Charles UniversityUNCE 204020/2012
NSFEAR-1151926
Southern California Earthquake Center (SCEC)UNSPECIFIED
NSFEAR-1033462
USGSG12AC20038
Record Number:CaltechAUTHORS:20151204-094810051
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20151204-094810051
Official Citation:F. Gallovič and J.-P. Ampuero A New Strategy to Compare Inverted Rupture Models Exploiting the Eigenstructure of the Inverse Problem Seismological Research Letters, November/December 2015, v. 86, p. 1679-1689, First published on September 16, 2015, doi:10.1785/0220150096
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62606
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:04 Dec 2015 18:09
Last Modified:04 Dec 2015 18:09

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