Aftershock Duration of the 1976 MS7.8 Tangshan Earthquake and Implication for Seismic Hazard Estimation
详细信息
- 责任者：Zhong Qiu (College of Earth Science ; Graduate University of Chinese Academy of Sciences ; Beijing 100049 ; China) ; Shi Baoping
- 刊名：Acta Seismologica Sinica
- 出版年：2012
- 卷期：34(4)
- 关键词：唐山地震1976 ; Tangshan earthquake 1976 ; 地震危险性 ; seismic risk ; 河北 ; Hebei Province
- 页码：p.494-508
- 图表：8 illus., 1 table, 34 refs.
- 分类号：0500
- issnNo：ISSN0253-3782
- isbnNo：CN11-2021/P
摘要
Based on Dietrich theory, it claimed that the aftershock duration is a function of remote shear stressing rate, normal stress acting on the fault plane, and fault frictional constitutive parameters ( Dieterich ) . In general, shear stressing rate could be estimated in three ways. The conclusive noting gives that, for the 1976 MS 7.8 Tangshan earthquake, the triggered aftershocks would last at least 70 years, implying that the current earthquakes which occurred in Tangshan region after the 1976 mainshock are the aftershocks of the main event.
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