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Bayesian historical earthquake relocation: an example from the 1909 Taipei earthquake

Minson, Sarah E. and Lee, William H. K. (2014) Bayesian historical earthquake relocation: an example from the 1909 Taipei earthquake. Geophysical Journal International, 198 (3). pp. 1419-1430. ISSN 0956-540X. doi:10.1093/gji/ggu201. https://resolver.caltech.edu/CaltechAUTHORS:20140828-115538546

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Abstract

Locating earthquakes from the beginning of the modern instrumental period is complicated by the fact that there are few good-quality seismograms and what traveltimes do exist may be corrupted by both large phase-pick errors and clock errors. Here, we outline a Bayesian approach to simultaneous inference of not only the hypocentre location but also the clock errors at each station and the origin time of the earthquake. This methodology improves the solution for the source location and also provides an uncertainty analysis on all of the parameters included in the inversion. As an example, we applied this Bayesian approach to the well-studied 1909 M_w 7 Taipei earthquake. While our epicentre location and origin time for the 1909 Taipei earthquake are consistent with earlier studies, our focal depth is significantly shallower suggesting a higher seismic hazard to the populous Taipei metropolitan area than previously supposed.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1093/gji/ggu201DOIArticle
http://gji.oxfordjournals.org/content/198/3/1419PublisherArticle
http://gji.oxfordjournals.org/content/198/3/1419/suppl/DC1PublisherSupporting Information
ORCID:
AuthorORCID
Minson, Sarah E.0000-0001-5869-3477
Additional Information:© The Authors 2014. Published by Oxford University Press on behalf of The Royal Astronomical Society. Accepted 2014 May 28; Received 2014 May 27; in original form 2014 February 18. The authors wish to acknowledge Dr. Fred Klein and Dr. Jim Savage for helpful reviews of our original manuscript draft. We thank Prof. Duncan Agnew, the editor, Dr. Anthony Lomax, the reviewer, and one anonymous reviewer for their careful and detailed reviews of our submitted manuscript. The comments and suggestions we received greatly improved our manuscript.
Subject Keywords:Earthquake dynamics; Earthquake ground motions; Earthquake source observations; Seismicity and tectonics; Site effects
Issue or Number:3
DOI:10.1093/gji/ggu201
Record Number:CaltechAUTHORS:20140828-115538546
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140828-115538546
Official Citation:Minson, S. E., & Lee, W. H. K. (2014). Bayesian historical earthquake relocation: an example from the 1909 Taipei earthquake. Geophysical Journal International, 198(3), 1419-1430. doi: 10.1093/gji/ggu201
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49021
Collection:CaltechAUTHORS
Deposited By: Joanne McCole
Deposited On:28 Aug 2014 20:41
Last Modified:10 Nov 2021 18:39

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