1501年渭南朝邑7.0级地震发震断裂初探
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摘要
长期以来,对1501年朝邑7.0级地震发震构造鲜有研究。通过详细的野外调查,在震中朝邑北部发现一系列北东向地形陡坎,同时,穿过这些陡坎的浅层地震资料显示出地表下存在数条北东向断裂,与地表陡坎具有较好的相关性,由此初步推断,朝邑地震发震断裂走向为北东向。
Seismogenic structures of the Chaoyi M 7.0 earthquake in 1501 are poorly studied.On the basis of detailed field investigation,a series of north-east steep inclines are identified in the epicenter of northern Chaoyi.Furthermore,seismic data shows that a number of north-east tectonic faults,below these steep inclines,are also existed.The intimate association between the seep inclines and the subsurface faults indicates that the Chaoyi earthquake was a north-east strike in origin.
Seismogenic structures of the Chaoyi M 7.0 earthquake in 1501 are poorly studied.On the basis of detailed field investigation,a series of north-east steep inclines are identified in the epicenter of northern Chaoyi.Furthermore,seismic data shows that a number of north-east tectonic faults,below these steep inclines,are also existed.The intimate association between the seep inclines and the subsurface faults indicates that the Chaoyi earthquake was a north-east strike in origin.
引文
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[3]韩恒悦,贺明静,李永善.渭河盆地东部地区的活断层[J].地震地质,1987,9(2):85-90.
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