川西地震强化监视区的基本情况与工作设想
|
摘要
川西地震强化监视区属于计划建立的中国内地首批5个地震强化监视区之一。在初步方案中,该区沿川滇活动地块的东北—东部边界的一部分展布,区内有鲜水河断裂中—南段,安宁河、则木河以及大凉山等活动断裂,总面积约为6万平方千米。本文着重介绍了川西地震强化监视区的基本情况、历史与现今强震活动背景、中长期地震潜势、现有的工作基础和监测能力。最后,作者提出在该区开展强化监测工作的建议,以及与该区中期—短期震情跟踪和预报实践紧密相关的研究课题。
The Western Sichuan Strengthened Monitoring Region on Earthquake is one of the earthquake strengthenedmonitoring regions that are planning to be built first on the Chinese mainland.In the preliminary scheme,the region covers parts of the northeastern and eastern boundaries of the SichuanYunnan active tectonic block,that are made up of the southeastern portion of the Xianshuihe fault,the Anninghe fault,the Zemuhe fault,and has a total area of about 60,000 km2.This paper focuses on the topics such as basic situation,background of historical and current strongearthquake activities,midlong term seismic potential,as well as the work foundation and monitoring ability at present of the Western Sichuan Strengthened Monitoring Region on Earthquake.Finally,the author puts earthquake monitoring in the region and proposals for research projects related closely to the practice of the midshort term prediction and the risk situation tracing for the coming earthquake.
The Western Sichuan Strengthened Monitoring Region on Earthquake is one of the earthquake strengthenedmonitoring regions that are planning to be built first on the Chinese mainland.In the preliminary scheme,the region covers parts of the northeastern and eastern boundaries of the SichuanYunnan active tectonic block,that are made up of the southeastern portion of the Xianshuihe fault,the Anninghe fault,the Zemuhe fault,and has a total area of about 60,000 km2.This paper focuses on the topics such as basic situation,background of historical and current strongearthquake activities,midlong term seismic potential,as well as the work foundation and monitoring ability at present of the Western Sichuan Strengthened Monitoring Region on Earthquake.Finally,the author puts earthquake monitoring in the region and proposals for research projects related closely to the practice of the midshort term prediction and the risk situation tracing for the coming earthquake.
引文
① 易桂喜 ,等 2 0 0 2 由地震活动参数分析安宁河—则木河断裂带的现今活动习性 地震科学联合基金 1 0 2 0 0 2号课题研究进展报告
[1] 张培震,等 中国大陆的强震活动与活动地块 中国科学(D辑),2003
[2] 徐锡伟,闻学泽,郑荣章 川滇地区活动块体最新构造变动样式及其动力来源 中国科学(D辑),2002
[3] 国家地震局震害防御司 中国历史强震目录[M] 北京:地震出版社,1995 1-514
[4] 中国地震局震害防御司 中国近代地震目录[M] 北京:中国科学技术出版社,1999 1-637
[5] 闻学泽,杜平山,龙德雄 安宁河断裂带小相岭段古地震的新证据及最晚事件的年代[J],地震地质,2000,22(1):1-8
[6] 闻学泽 四川西部鲜水河—安宁河—则木河断裂带的地震破裂分段特征[J] 地震地质,2000,22(3):239-249
[7] 申旭辉,陈正立,许任德 凉山活动构造带晚新生代变形特征与位移规模[J] 地震地质,2000,22(3):232-238
[8] 宋方敏,李如成,徐锡伟 四川大凉山断裂带古地震研究初步结果[J] 地震地质,2002,24(1):27-34
[9] 闻学泽,白兰香 鲜水河活动断裂带的形变组合及运动特征研究[J].中国地震,1985,4(1):,53-59。
[10] 韩渭宾,黄圣睦 四川鲜水河断裂上的一个地震空区[J] 地震学报,1983,5(3):280-286
[11] 闻学泽 活动断裂地震潜势的定量评估[M] 北京:地震出版社,1995,1-150
[12] WenXueze,YiGuixi,ZhangPeizheng Apreliminaryevaluationoftime-dependentseismichazardfortheeastern-boundaryfault-zoneofSichuan-YunnanBlock,China ProceedingsoftheFirstChina-JapanWorkshoponEarthquakeDisasterMitigation,EarthquakeResearchInstitute,Japan,2002,141-154
[13] Mogi,K Twokindsofseismicgaps PureandAppliedGeophysics,1979,117:1172-1186
[14] Allen,C R ,etal Fieldstudyofahighlyactivefaultzone:TheXianshuihefaultofsouthwesternChina Geol Soc Am Bull ,1991,103:1178-1199
[15] Allen,CR,etal SegmentationandrupturehistoryoftheXianshuihefault,southwesternChina,U S GeologicalSurveyOpen-FileReport,1989,89-315:10-31
[16] WenXueze,etal Slip-rateandrecurrenceintervaloftheLuhuo/DaofusegmentoftheXianshuihefault,Sichuan,PRC EOSTrasaction,1996,77(46):693-694
[1] 张培震,等 中国大陆的强震活动与活动地块 中国科学(D辑),2003
[2] 徐锡伟,闻学泽,郑荣章 川滇地区活动块体最新构造变动样式及其动力来源 中国科学(D辑),2002
[3] 国家地震局震害防御司 中国历史强震目录[M] 北京:地震出版社,1995 1-514
[4] 中国地震局震害防御司 中国近代地震目录[M] 北京:中国科学技术出版社,1999 1-637
[5] 闻学泽,杜平山,龙德雄 安宁河断裂带小相岭段古地震的新证据及最晚事件的年代[J],地震地质,2000,22(1):1-8
[6] 闻学泽 四川西部鲜水河—安宁河—则木河断裂带的地震破裂分段特征[J] 地震地质,2000,22(3):239-249
[7] 申旭辉,陈正立,许任德 凉山活动构造带晚新生代变形特征与位移规模[J] 地震地质,2000,22(3):232-238
[8] 宋方敏,李如成,徐锡伟 四川大凉山断裂带古地震研究初步结果[J] 地震地质,2002,24(1):27-34
[9] 闻学泽,白兰香 鲜水河活动断裂带的形变组合及运动特征研究[J].中国地震,1985,4(1):,53-59。
[10] 韩渭宾,黄圣睦 四川鲜水河断裂上的一个地震空区[J] 地震学报,1983,5(3):280-286
[11] 闻学泽 活动断裂地震潜势的定量评估[M] 北京:地震出版社,1995,1-150
[12] WenXueze,YiGuixi,ZhangPeizheng Apreliminaryevaluationoftime-dependentseismichazardfortheeastern-boundaryfault-zoneofSichuan-YunnanBlock,China ProceedingsoftheFirstChina-JapanWorkshoponEarthquakeDisasterMitigation,EarthquakeResearchInstitute,Japan,2002,141-154
[13] Mogi,K Twokindsofseismicgaps PureandAppliedGeophysics,1979,117:1172-1186
[14] Allen,C R ,etal Fieldstudyofahighlyactivefaultzone:TheXianshuihefaultofsouthwesternChina Geol Soc Am Bull ,1991,103:1178-1199
[15] Allen,CR,etal SegmentationandrupturehistoryoftheXianshuihefault,southwesternChina,U S GeologicalSurveyOpen-FileReport,1989,89-315:10-31
[16] WenXueze,etal Slip-rateandrecurrenceintervaloftheLuhuo/DaofusegmentoftheXianshuihefault,Sichuan,PRC EOSTrasaction,1996,77(46):693-694