Quantifying the seismicity on Taiwan

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题名:	Quantifying the seismicity on Taiwan
作者:	陳建志;Wu, Yi-Hsuan;Chen, Chien-Chih;Turcotte, Donald L.;Rundle, John B.
贡献者:	地球科學學院地球科學學系
日期:	2013-07-01
上传时间:	2026-04-23 11:41:36 (UTC+8)
出版者:	Oxford University Press
摘要:	摘要： We quantify the seismicity on the island of Taiwan using the frequency-magnitude statistics of earthquakes since 1900. A break in Gutenberg-Richter scaling for large earthquakes in global seismicity has been observed, this break is also observed in our Taiwan study. The seismic data from the Central Weather Bureau Seismic Network are in good agreement with the Gutenberg-Richter relation taking b 1 when M < 7. For large earthquakes, M ≥ 7, the seismic data fit Gutenberg-Richter scaling with b 1.5. If the Gutenberg-Richter scaling for M < 7 earthquakes is extrapolated to larger earthquakes, we would expect a M > 8 earthquake in the study region about every 25 yr. However, our analysis shows a lower frequency of occurrence of large earthquakes so that the expected frequency of M > 8 earthquakes is about 200 yr. The level of seismicity for smaller earthquakes on Taiwan is about 12 times greater than in Southern California and the possibility of a M 9 earthquake north or south of Taiwan cannot be ruled out. In light of the Fukushima, Japan nuclear disaster, we also discuss the implications of our study for the three operating nuclear power plants on the coast of Taiwan. 其他題名： Geophys. J. Int 出版者： Oxford University Press 出版日期： 2013-07-01 出處： Geophysical journal international, 2013-07, Vol.194 (1), p.465-469 版權： The Authors 2013. Published by Oxford University Press on behalf of The Royal Astronomical Society. 2013 識別號： ISSN: 0956-540X 識別號： EISSN: 1365-246X 識別號： DOI: 10.1093/gji/ggt101
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