Articles | Volume 20, issue 12
https://doi.org/10.5194/nhess-20-3333-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-20-3333-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Dec 2020
Research article |
| 09 Dec 2020
| 09 Dec 2020
Spatiotemporal changes of seismicity rate during earthquakes
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, China
Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, China
Yang-Yi Sun
Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, China
Strong Wen
Department of Earth and Environmental Sciences, National Chung Cheng University, Chiayi, Taiwan
Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, China
Li-Ching Lin
Department of System Engineering and Naval Architecture, National Taiwan Ocean University, Keelung, Taiwan
Huaizhong Yu
China Earthquake Networks Center, Beijing, China
Xuemin Zhang
Institute of Earthquake Forecasting, China Earthquake Administration, Beijing, China
Yongxin Gao
School of Civil Engineering, Hefei University of Technology, Hefei, China
Chi-Chia Tang
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, China
Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, China
Cheng-Horng Lin
Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan
Jann-Yenq Liu
Center for Astronautical Physics and Engineering, National Central
University, Taoyuan, Taiwan
Department of space science and engineering, National Central University, Taoyuan, Taiwan
Center for Space and Remote Sensing Research, National Central University, Taoyuan, Taiwan
Data sets
Wide sensitive area of small foreshocks C.-H. Chen https://doi.org/10.5061/dryad.1jwstqjqq
Short summary
Scientists demystify stress changes before mainshocks and utilize the foreshocks as an indicator. We investigate changes in seismicity far from mainshocks by using tens of thousands of M ≥ 2 quakes for 10 years in Taiwan and Japan. The results show that wide areas exhibit increased seismicity occurring more than several times in areas of the fault rupture. The stressed crust triggers resonance at frequencies varying from ~ 5 × 10–4 to ~ 10–3 Hz that is supported by the resonant frequency model.
Scientists demystify stress changes before mainshocks and utilize the foreshocks as an...
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