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Title: Tectonic tremor and LFEs on a reverse fault in Taiwan

Abstract

Abstract We compare low‐frequency earthquakes (LFEs) from triggered and ambient tremor under the southern Central Range, Taiwan. We apply the PageRank algorithm used by Aguiar and Beroza (2014) that exploits the repetitive nature of the LFEs to find repeating LFEs in both ambient and triggered tremor. We use these repeaters to create LFE templates and find that the templates created from both tremor types are very similar. To test their similarity, we use both interchangeably and find that most of both the ambient and triggered tremor match the LFE templates created from either data set, suggesting that LFEs for both events have a common origin. We locate the LFEs by using local earthquake P wave and S wave information and find that LFEs from triggered and ambient tremor locate to between 20 and 35 km on what we interpret as the deep extension of the Chaochou‐Lishan Fault.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Stanford Univ., CA (United States). Geophysics Dept.
  2. Northwestern Univ., Evanston, IL (United States). Center for Optimization and Statistical Learning. Northwestern Inst. on Complex Systems
  3. Stanford Univ., CA (United States). Geophysics Dept.
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Northwestern Univ., Evanston, IL (United States)
Sponsoring Org.:
USDOE; Japan Society for the Promotion of Science (JSPS)
OSTI Identifier:
1366925
Alternate Identifier(s):
OSTI ID: 1785794
Report Number(s):
LLNL-JRNL-711180
Journal ID: ISSN 0094-8276
Grant/Contract Number:  
AC52-07NA27344; P12329; KAKENHI 23244091
Resource Type:
Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 44; Journal Issue: 13; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; tectonic tremor; low-frequency earthquakes; PageRank; Taiwan

Citation Formats

Aguiar, Ana C., Chao, Kevin, and Beroza, Gregory C. Tectonic tremor and LFEs on a reverse fault in Taiwan. United States: N. p., 2017. Web. doi:10.1002/2016GL072148.
Aguiar, Ana C., Chao, Kevin, & Beroza, Gregory C. Tectonic tremor and LFEs on a reverse fault in Taiwan. United States. https://doi.org/10.1002/2016GL072148
Aguiar, Ana C., Chao, Kevin, and Beroza, Gregory C. Fri . "Tectonic tremor and LFEs on a reverse fault in Taiwan". United States. https://doi.org/10.1002/2016GL072148. https://www.osti.gov/servlets/purl/1366925.
@article{osti_1366925,
title = {Tectonic tremor and LFEs on a reverse fault in Taiwan},
author = {Aguiar, Ana C. and Chao, Kevin and Beroza, Gregory C.},
abstractNote = {Abstract We compare low‐frequency earthquakes (LFEs) from triggered and ambient tremor under the southern Central Range, Taiwan. We apply the PageRank algorithm used by Aguiar and Beroza (2014) that exploits the repetitive nature of the LFEs to find repeating LFEs in both ambient and triggered tremor. We use these repeaters to create LFE templates and find that the templates created from both tremor types are very similar. To test their similarity, we use both interchangeably and find that most of both the ambient and triggered tremor match the LFE templates created from either data set, suggesting that LFEs for both events have a common origin. We locate the LFEs by using local earthquake P wave and S wave information and find that LFEs from triggered and ambient tremor locate to between 20 and 35 km on what we interpret as the deep extension of the Chaochou‐Lishan Fault.},
doi = {10.1002/2016GL072148},
journal = {Geophysical Research Letters},
number = 13,
volume = 44,
place = {United States},
year = {Fri Jun 16 00:00:00 EDT 2017},
month = {Fri Jun 16 00:00:00 EDT 2017}
}

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Cited by: 7 works
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