[1]CHU Fei,WANG Shaowen,ZHANG Yi,et al.Research on Coseismic Coulomb Stress Changes Caused by Two Liyang Earthquakes in 1974 and 1979 and their Seismogenic Tectonic[J].Journal of Seismological Research,2016,39(03):397-403.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 03
Page number:
397-403
Column:
Public date:
2016-07-23
- Title:
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Research on Coseismic Coulomb Stress Changes Caused by Two Liyang Earthquakes in 1974 and 1979 and their Seismogenic Tectonic
- Author(s):
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CHU Fei; WANG Shaowen; ZHANG Yi; TAN Xin; YUAN Quan; XU Rugang
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(Earthquake Administration of Anhui Province,Hefei 230031,Anhui,China)
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- Keywords:
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Liyang earthquake; coulomb stress changes; focal mechanism solution; the border of Jiangsu and Anhui Provinces
- CLC:
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P315.72
- DOI:
-
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- Abstract:
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We calculated the co-seismic coulomb stress changes caused by Liyang MS5.5 earthquake in 1974 and Liyang MS6.0 earthquake in 1979 which resulted in some casualty and property losses,and compared with the distribution of aftershocks to obtain that the direction of seismogenic faults of two Liyang earthquakes should be NW.The epicenter of Liyang MS6.0 earthquake in 1979 located at the area of the static coulomb stress increasing induced by Liyang MS5.5 earthquake in 1974,and the stress values were about 0.01 bar(1 bar=0.1 MPa),which suggest that the Liyang MS5.5 earthquake in 1974 has certain positive effect to the Liyang MS6.0 earthquake in 1979,However,due to the smaller of the stress values changes,it has been unable to cause a direct trigger.