Title | Determination of epicenters before earthquakes utilizing far seismic and GNSS data: Insights from ground vibrations |
Author | |
Publication Years | 2020-10-01
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Keywords | |
Language | English
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URL | [Source Record] |
Funding Project | Ministry of Science and Technology, Taiwan[106-2116-M-194-016];Ministry of Science and Technology, Taiwan[106-2628-M-008-002];National Natural Science Foundation of China[41474038];National Natural Science Foundation of China[41774048];
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Abstract | Broadband seismometers, ground-based Global Navigation Satellite Systems (GNSS), and magnetometers that were located within an epicentral distance of approximately 150 km consistently observed the novel anomalous behaviors of the common-mode ground vibrations approximately 5–10 days before the M6.6 Meinong earthquake in Taiwan. The common-mode ground vibrations with amplitudes near 0.1 m at frequencies ranging from 8 × 10 to 2 × 10 Hz were generated near the region close to the epicenter of the impending earthquake. The common-mode vibrations were consistently observed in seismic and GNSS data associated with five other earthquakes in four distinct areas. The results reveal that the common-mode vibrations could be a typical behavior before earthquakes. The causal mechanism of common-mode vibrations can be attributed to crustal resonance excitations before fault dislocations occur. Potential relationships with other pre-earthquake anomalies suggest that the common-mode vibrations could be ground motion before earthquakes, which was investigated for a significant length of time. |
DOI | |
Source Title | |
Volume | 12
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Issue | 19
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Pages | 1-13
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Indexed By | |
SUSTech Authorship | Others
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Scopus EID | 2-s2.0-85092794130
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Data Source | Scopus
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WOS Accession No | WOS:000587196600001
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EI Accession Number | 20204309383428
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EI Keywords | Earthquakes
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ESI Classification Code | Seismology:484
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EISSN | 2072-4292
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Citation statistics |
Cited Times [WOS]:9
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Document Type | Other |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/402798 |
Department | Department of Earth and Space Sciences |
Affiliation | 1.State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan,430074,China 2.Institute of Geophysics and Geomatics,China University of Geosciences,Wuhan,430074,China 3.National Applied Research Laboratories,Taipei,10636,Taiwan 4.Department of Real Estate and Built Environment,National Taipei University,New Taipei,23741,Taiwan 5.Department of Earth and Environmental Sciences,National Chung Cheng University,Chia-Yi,62102,Taiwan 6.China Earthquake Networks Center,Beijing,100045,China 7.School of Civil Engineering,Hefei University of Technology,Hefei,230009,China 8.Department of Earth and Space Sciences,Southern University of Science and Technology,Shenzhen,518055,China 9.Graduate Institute of Space Science,National Central University,Taoyuan,32001,Taiwan 10.Center for Space and Remote Sensing Research,National Central University,Taoyuan,32001,Taiwan 11.Center for Astronautical Physics and Engineering,National Central University,Taoyuan,32001,Taiwan 12.Institute of Earth Sciences,Academia Sinica,Taipei,11529,Taiwan 13.National Center for Research on Earthquake Engineering,Taipei,106219,Taiwan 14.Key Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan,430071,China |
Recommended Citation GB/T 7714 |
Chen,Chieh Hung,Lin,Li Ching,Yeh,Ta Kang,et al. Determination of epicenters before earthquakes utilizing far seismic and GNSS data: Insights from ground vibrations. 2020-10-01.
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