Tectonic tremor and LFEs on a reverse fault in Taiwan
In this paper, 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. Finally, 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.
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Stanford Univ., CA (United States). Geophysics Dept.
- Northwestern Univ., Evanston, IL (United States). Center for Optimization and Statistical Learning. Northwestern Inst. on Complex Systems
- Stanford Univ., CA (United States). Geophysics Dept.
- Publication Date:
- Report Number(s):
Journal ID: ISSN 0094-8276
- Grant/Contract Number:
- AC52-07NA27344; P12329; KAKENHI 23244091
- Accepted Manuscript
- Journal Name:
- Geophysical Research Letters
- Additional Journal Information:
- Journal Volume: 44; Journal Issue: 13; Journal ID: ISSN 0094-8276
- American Geophysical Union
- Research Org:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Northwestern Univ., Evanston, IL (United States)
- Sponsoring Org:
- USDOE; Japan Society for the Promotion of Science (JSPS)
- Country of Publication:
- United States
- 58 GEOSCIENCES; tectonic tremor; low-frequency earthquakes; PageRank; Taiwan
- OSTI Identifier: