Study on Paleoearthquakes of the Eastern Liupanshan Piedmont Fault Zone |
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Authors: | Xiang Hongfa Yasutaka Ikeda Zhang Wanxia Zhang Bingliang Guo Shunmin and He HonglinInstitute of Geology CSB Beijing China Tokyo University Tokyo Japan |
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Institution: | Xiang Hongfa,Yasutaka Ikeda,Zhang Wanxia,Zhang Bingliang,Guo Shunmin,and He HonglinInstitute of Geology,CSB,Beijing 100029,China Tokyo University,Tokyo 113,Japan |
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Abstract: | Based on trench excavation and detailed field investigation, the authors have ascertained that 6 paleoearthquake events have occurred in the Haizixia area of the Eastern Liupanshan Piedmont fault zone since 46Ka B.P. The recurrence time of 6 events were about 15000a, 20250a, 14750a, 12150a, 8550a and 4000a B.P., respectively, the recurrence intervals were about 15000a, 5500a, 2600a, 3600a and 4550a, respectively. According to M-D empirical relations, the vertical dislocation of events 1 and 2 corresponded to the dislocation of the earthquake with M8.0; the vertical dislocation of events 3-6, was corresponded to the dislocation of earthquakes with M6.5~7.5. |
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Keywords: | Paleoearthquake recurrence interval Liupanshan |
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