北天山西段中强地震前地倾斜异常的演化分析
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摘要
研究了北天山西段3次5级地震前地倾斜异常的特征,得出:在时间上呈较明显的阶段性,空间上存在 由西向东迁移(向震中迁移)的过程。并用震源机制解的结果对地倾斜的异常特征作了较好的解释。北天山85°经 线东西两侧震源机制解差异明显,表明这一地区受力环境较为复杂。
We sum up the characteristics of tilt anomalies before 3 earthquakes with %M%s5 in the west of northern Tianshan Mountain and think that the anomalies are of the staged characteristics in time and there is a moving process from west to east in space.We used the results of focal mechanism solution to explain abnormal characteristics of tilt very well.The apparent difference of focal mechanism solution in the east and the west of longitude 85° in the northern Tianshan Mountains shows that in this region the environment is forced complicatedly.
We sum up the characteristics of tilt anomalies before 3 earthquakes with %M%s5 in the west of northern Tianshan Mountain and think that the anomalies are of the staged characteristics in time and there is a moving process from west to east in space.We used the results of focal mechanism solution to explain abnormal characteristics of tilt very well.The apparent difference of focal mechanism solution in the east and the west of longitude 85° in the northern Tianshan Mountains shows that in this region the environment is forced complicatedly.
引文
1994年新疆维吾尔自治区震情研究年度报告
2003年新疆维吾尔自治区震情研究年度报告
1 杨又陵,王海涛,曲延军.1995年5月2日新疆维吾尔自 治区乌苏南5.8级地震[A].陈棋福.中国震例[C].北京:地震出版社,2002.
1 YangYouling,WangHaitaoandQuYanjun.WusuMs5.8earthquakeonMay2,1995inXinjiangUygurAu tonomousRegion[A].ChenQifu.EarthquakeCasesinChina[C].Beijing:SeismologicalPress,2002.(inChi nese)
2 杨又陵,王海涛,曲延军.1996年1月9日新疆维吾尔自治区沙湾5.2级地震[A].陈棋福.中国震例[C].北京:地震出版社,2002.
2 YangYouling,WangHaitaoandQuYanjun.ShawanMs5.2earthquakeonJan.9,1996inXinjiangUygurAu tomousRegion[A].ChenQifu.EarthquakeCasesinChi na[C].Beijing:SeismologicalPress,2002.(inChinese)
3 彭树森.大地形变测量所反映的天山最新构造运动[J].内陆地震,1993,7(2):136～141.
3 PengShusen.ThelatesttectogenesisinTianshanMountainsreflectedbyterrestrialdeformation[J].In landEarthquake,1993,7(2):136-141.(inChinese)
4 张建朝.天山地区流动重力重复测量资料前兆异常识别判据、地震预报指标及效能评价[J].内陆地震,2002,16(4):306～316.
4 ZhangJianchao.Earthquakeanomalyrecognitioncriteri on,predictionindexfromrepeatedmobilegravitysurver tatainTianshanareaandevaluationofitspredictionabil ity[J].InlandEarthquake,2002,16(4):306-316.(inChinese)
5 Fujiiyoichiro.Therelationoflastingtimeofgroundde formationandmagnitudesbeforetheearthquakeoccurred[J].EarthquakeAbroad,1976,2.
6 梅世蓉.地震前兆场物理模式与前兆时空分布机制研究(三)[J].地震学报,1996,18(2):170～178.
6 MeiShirong.Onthepysicalmodelofearthquakeprecur sorfieldsandthemechanismoftime spacedistributionof precursor(Ⅲ)[J].ActaSeismologicaSinica,1996,18(2):170-178.(inChinese)
2003年新疆维吾尔自治区震情研究年度报告
1 杨又陵,王海涛,曲延军.1995年5月2日新疆维吾尔自 治区乌苏南5.8级地震[A].陈棋福.中国震例[C].北京:地震出版社,2002.
1 YangYouling,WangHaitaoandQuYanjun.WusuMs5.8earthquakeonMay2,1995inXinjiangUygurAu tonomousRegion[A].ChenQifu.EarthquakeCasesinChina[C].Beijing:SeismologicalPress,2002.(inChi nese)
2 杨又陵,王海涛,曲延军.1996年1月9日新疆维吾尔自治区沙湾5.2级地震[A].陈棋福.中国震例[C].北京:地震出版社,2002.
2 YangYouling,WangHaitaoandQuYanjun.ShawanMs5.2earthquakeonJan.9,1996inXinjiangUygurAu tomousRegion[A].ChenQifu.EarthquakeCasesinChi na[C].Beijing:SeismologicalPress,2002.(inChinese)
3 彭树森.大地形变测量所反映的天山最新构造运动[J].内陆地震,1993,7(2):136～141.
3 PengShusen.ThelatesttectogenesisinTianshanMountainsreflectedbyterrestrialdeformation[J].In landEarthquake,1993,7(2):136-141.(inChinese)
4 张建朝.天山地区流动重力重复测量资料前兆异常识别判据、地震预报指标及效能评价[J].内陆地震,2002,16(4):306～316.
4 ZhangJianchao.Earthquakeanomalyrecognitioncriteri on,predictionindexfromrepeatedmobilegravitysurver tatainTianshanareaandevaluationofitspredictionabil ity[J].InlandEarthquake,2002,16(4):306-316.(inChinese)
5 Fujiiyoichiro.Therelationoflastingtimeofgroundde formationandmagnitudesbeforetheearthquakeoccurred[J].EarthquakeAbroad,1976,2.
6 梅世蓉.地震前兆场物理模式与前兆时空分布机制研究(三)[J].地震学报,1996,18(2):170～178.
6 MeiShirong.Onthepysicalmodelofearthquakeprecur sorfieldsandthemechanismoftime spacedistributionof precursor(Ⅲ)[J].ActaSeismologicaSinica,1996,18(2):170-178.(inChinese)
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