深圳市活断层探测与地震危险性评价
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摘要
在前人的研究成果基础上,通过对深圳市目标断层地表出露段开展野外地震地质调查,对隐伏段进行浅层地震反射探测、跨断层钻孔探测、槽探、电磁波CT探测,查明了目标断层的空间位置,确定了其第四纪活动性,作出了目标区主要断层分布图。此外,通过区域构造背景分析确定了目标断层地震强度的总体水平,给出最大震级上限,运用入倉—三宅经验关系和构造类比方法分别估计了断层的最大震级,并对目标断层进行危险性综合评价,作出了断层危险性评价图。
Based on the Previous research results,through the field seismic geology survey on the surface outcrop section of the target faults,and shallow seismic reflection exploration、drilling exploration crossing faults、trenching,and electromagnetic wave CT exploration of concealed faults,the spatial position and the Quaternary activity of target faults in Shenzhen City are identified,the distribution map of main faults in target zone is drafted.In addition,based on the regional tectonic background,the target faults' overall level of earthquake intensity is analyzed,and upper limit magnitude of the faults is educed,Then,the maximum magnitude of earthquakes in Shenzhen is evaluated with the Warehousing-Miyake empirical relationship and the tectonics analogy method.Finally,the seismic hazard of the target faults in Shenzhen is assessed comprehensively according to the methods above-mentioned.the risk evaluation map of target faults is drafted in this paper.
Based on the Previous research results,through the field seismic geology survey on the surface outcrop section of the target faults,and shallow seismic reflection exploration、drilling exploration crossing faults、trenching,and electromagnetic wave CT exploration of concealed faults,the spatial position and the Quaternary activity of target faults in Shenzhen City are identified,the distribution map of main faults in target zone is drafted.In addition,based on the regional tectonic background,the target faults' overall level of earthquake intensity is analyzed,and upper limit magnitude of the faults is educed,Then,the maximum magnitude of earthquakes in Shenzhen is evaluated with the Warehousing-Miyake empirical relationship and the tectonics analogy method.Finally,the seismic hazard of the target faults in Shenzhen is assessed comprehensively according to the methods above-mentioned.the risk evaluation map of target faults is drafted in this paper.
引文
[1]JSGC-04.中国地震活动断层探测技术系统技术规程[S].
[2]陈挺光.深圳断裂带基本特征及其现今活动性[J].广东地质,1989,4(1):51～61
[3]李建超,丘元禧.广东莲花山燕山早期断裂动热变质带的基本特征及形成机制的探讨[J].长春地质学院学报,1990,20(1):11～20
[4]徐杰,马宗晋,陈国光等.中国大陆东部新构造期北西向断裂带的初步探讨[J].地学前缘,2003(10):193～198
[5]闻学泽,徐锡伟.对东南沿海1067年和1574年两次地震的分析[J].地震地质,2005.27(1):1～10
[6]入倉孝次郎,三宅弘恵.M8クラスの大地震の断層パラメーター一断層長さ,幅,変位,面積と地震モーメントの関係.京都大学防災研究所,2000
[7]Hanks,T.C.,H.Kanamori.1979.A moment magnitudescale.J.Geophys.Res.,84:2348～2350
[8]Mohammadioum B,Serva L.2001.Stress Drop,Slip Type,Earthquake magnitude,and Seismic Hazard.Bull.Seism.Soc.Am.,91:694～707
[9]余成华.深圳市断层活动性研究和地震危险性分析[D].浙江大学博士论文
[10]马浩明,陈庞龙,李运贵.深圳市断裂新活动与地震研究进展[J].华南地震,2010,3:1～10
[2]陈挺光.深圳断裂带基本特征及其现今活动性[J].广东地质,1989,4(1):51～61
[3]李建超,丘元禧.广东莲花山燕山早期断裂动热变质带的基本特征及形成机制的探讨[J].长春地质学院学报,1990,20(1):11～20
[4]徐杰,马宗晋,陈国光等.中国大陆东部新构造期北西向断裂带的初步探讨[J].地学前缘,2003(10):193～198
[5]闻学泽,徐锡伟.对东南沿海1067年和1574年两次地震的分析[J].地震地质,2005.27(1):1～10
[6]入倉孝次郎,三宅弘恵.M8クラスの大地震の断層パラメーター一断層長さ,幅,変位,面積と地震モーメントの関係.京都大学防災研究所,2000
[7]Hanks,T.C.,H.Kanamori.1979.A moment magnitudescale.J.Geophys.Res.,84:2348～2350
[8]Mohammadioum B,Serva L.2001.Stress Drop,Slip Type,Earthquake magnitude,and Seismic Hazard.Bull.Seism.Soc.Am.,91:694～707
[9]余成华.深圳市断层活动性研究和地震危险性分析[D].浙江大学博士论文
[10]马浩明,陈庞龙,李运贵.深圳市断裂新活动与地震研究进展[J].华南地震,2010,3:1～10
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