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Resolution of non-double-couple mechanisms: simulation of hypocenter mislocation and velocity structure mismodeling
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SYSNO ASEP 0330652 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Resolution of non-double-couple mechanisms: simulation of hypocenter mislocation and velocity structure mismodeling Author(s) Šílený, Jan (GFU-E) ORCID, RID Source Title Bulletin of the Seismological Society of America. - : Seismological Society of America - ISSN 0037-1106
Roč. 99, č. 4 (2009), s. 2265-2272Number of pages 8 s. Language eng - English Country US - United States Keywords earthquake mechanisms ; induced seismic events ; non-double-couple mechanisms Subject RIV DC - Siesmology, Volcanology, Earth Structure R&D Projects IAA300120502 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA205/09/0724 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z30120515 - GFU-E (2005-2011) UT WOS 000268459800012 DOI 10.1785/0120080335 Annotation Mechanisms of earthquakes and induced seismic events are frequently found using the moment tensor description rather than the traditional double couple (DC), as it allows for nonshear source phenomena. However, non-DC source components are sensitive to event mislocations and inexact velocity models of the crust. Inaccuracies such as these can generate spurious non-DC components in the mechanism, which should be taken into account during the interpretation. We perform a synthetic case study simulating seismic observations at Soultz-sous-Forêts, Alsace, hot dry rock (HDR) site. Synthetic P and S amplitudes for several shear-tensile source models are inverted, assuming hypocenter mislocation and velocity structure mismodeling in several types of station coverage. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2010
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