2008年新疆于田Ms7.3地震的中期预测
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摘要
根据中国地壳运动观测网络工程获得的重力变化及强震活动性,介绍2008年新藏交界地区(36.0°N,80.0°E为中心,半径200km)Ms7.3地震中期预报的基本依据及重力场动态演化图像。
Based on the gravity variation data repeatedly measured in the Project of China Crust Movement Measuring Network and related stong seismicity,the authors had predicted in December,2006 that an event of Ms 6-7 would break out in the area with 36.0°N and 80.0°E as its center and 200 km as its radius during 2007-2008.This paper destribes the scientific basis and dynamic image of the gravity field on which the medium-term prediction was made.
Based on the gravity variation data repeatedly measured in the Project of China Crust Movement Measuring Network and related stong seismicity,the authors had predicted in December,2006 that an event of Ms 6-7 would break out in the area with 36.0°N and 80.0°E as its center and 200 km as its radius during 2007-2008.This paper destribes the scientific basis and dynamic image of the gravity field on which the medium-term prediction was made.
引文
[1]中国地震局第二监测中心2007年度地震趋势研究报告[R].2006.
1Chen Y T,Gu H D and Lu Z X.Variation of gravity before and after the Haicheng earthquake1975and the Tangshan earthquake1976[J].Phys Earth Planet Inter,1979,18:330-338.
2申重阳,李辉,付广裕.丽江7.0级地震重力前兆模式研究[J].地震学报,2003,25(2):163-171.2Shen Chongyang,Li Hui and Fu Guangyu.Study on gravity precursor mode of the LijiangMs7.0earthquak[J].Acta Seismologica Sinica,2003,16(2):175-184.(in Chinese)
3祝意青,等.昆仑山口西8.1级地震前重力变化[J].地震学报,2003,25(3):291-297.3Zhu Yiqing,et al.Gravity variation before Kulun Mountain pass westernMs8.1earthquake[J].Acta Seismologica Sini-ca,2003,17(3):304-311.(in Chinese)
4祝意青,等.中国大陆重力场变化及其引起的地球动力学特征[J].武汉大学学报(信息科学版),2007,32(3):246-250.4Zhu Yiqing,et al.Studies on gravity field variation and geo-dynamic characteristics in mainland of China[J].Geomatics and Information Science of Wuhan University,2007,32(3):246-250.(in Chinese)
5陈学忠,蒋长胜,李燕娥.2008年3月21日新疆于田7.3级地震[J].国际地震动态,2008,4:18-28.5Chen Xuezhong,Jiang Changsheng and Li Yane.The March21,2008Yutian,XinjiangMs7.3earthquake[J].Recent Developments in World Seismology,2008,4:18-28.(in Chinese)
6祝意青,等.新疆地区重力变化与伽师6.8级地震[J].大地测量与地球动力学,2003,23(3):66-69.6Zhu Yiqing,et al.Variation of gravity field of Xinjiang area and JiashiMs6.8earthquake[J].Journal of Geodesy and Geodynamics,2003,23(3):66-69.(in Chinese)7祝意青,等.民乐6.1、岷县5.2级地震前区域重力场变化研究[J].大地测量与地球动力学,2005,25(1):24-29.
7Zhu Yiqing,et al.Research on the variation of gravity field before MinleMs6.1and MinxianMs5.2earthquakes[J].Journal of Geodesy and Geodynamics,2005,25(1):24-29.(in Chinese)
8祝意青.青藏高原东北缘强震前兆特征研究——流动重力方法[J].国际地震动态,2007,5:16-21.8Zhu Yiqing.Precursory characterstics of stong earthquakes in northeastern edge of Qinghai-Tibet plateau by using mo-bile gravity gravity technique[J].Recent Developments in World Seismology,2007,5:16-21.(in Chinese)
9祝意青,等.南北地震带和青藏块体东部重力场演化与地震特征[J].中国地震,2001,17(1):56-69.9Zhu Yiqing,et al.Study on evolution of gravity field in the north-south seismic belt and the eastern Qinghai-Tibet block[J].Earthquake Research in China,2001,17(1):56-69.(in Chinese)
1Chen Y T,Gu H D and Lu Z X.Variation of gravity before and after the Haicheng earthquake1975and the Tangshan earthquake1976[J].Phys Earth Planet Inter,1979,18:330-338.
2申重阳,李辉,付广裕.丽江7.0级地震重力前兆模式研究[J].地震学报,2003,25(2):163-171.2Shen Chongyang,Li Hui and Fu Guangyu.Study on gravity precursor mode of the LijiangMs7.0earthquak[J].Acta Seismologica Sinica,2003,16(2):175-184.(in Chinese)
3祝意青,等.昆仑山口西8.1级地震前重力变化[J].地震学报,2003,25(3):291-297.3Zhu Yiqing,et al.Gravity variation before Kulun Mountain pass westernMs8.1earthquake[J].Acta Seismologica Sini-ca,2003,17(3):304-311.(in Chinese)
4祝意青,等.中国大陆重力场变化及其引起的地球动力学特征[J].武汉大学学报(信息科学版),2007,32(3):246-250.4Zhu Yiqing,et al.Studies on gravity field variation and geo-dynamic characteristics in mainland of China[J].Geomatics and Information Science of Wuhan University,2007,32(3):246-250.(in Chinese)
5陈学忠,蒋长胜,李燕娥.2008年3月21日新疆于田7.3级地震[J].国际地震动态,2008,4:18-28.5Chen Xuezhong,Jiang Changsheng and Li Yane.The March21,2008Yutian,XinjiangMs7.3earthquake[J].Recent Developments in World Seismology,2008,4:18-28.(in Chinese)
6祝意青,等.新疆地区重力变化与伽师6.8级地震[J].大地测量与地球动力学,2003,23(3):66-69.6Zhu Yiqing,et al.Variation of gravity field of Xinjiang area and JiashiMs6.8earthquake[J].Journal of Geodesy and Geodynamics,2003,23(3):66-69.(in Chinese)7祝意青,等.民乐6.1、岷县5.2级地震前区域重力场变化研究[J].大地测量与地球动力学,2005,25(1):24-29.
7Zhu Yiqing,et al.Research on the variation of gravity field before MinleMs6.1and MinxianMs5.2earthquakes[J].Journal of Geodesy and Geodynamics,2005,25(1):24-29.(in Chinese)
8祝意青.青藏高原东北缘强震前兆特征研究——流动重力方法[J].国际地震动态,2007,5:16-21.8Zhu Yiqing.Precursory characterstics of stong earthquakes in northeastern edge of Qinghai-Tibet plateau by using mo-bile gravity gravity technique[J].Recent Developments in World Seismology,2007,5:16-21.(in Chinese)
9祝意青,等.南北地震带和青藏块体东部重力场演化与地震特征[J].中国地震,2001,17(1):56-69.9Zhu Yiqing,et al.Study on evolution of gravity field in the north-south seismic belt and the eastern Qinghai-Tibet block[J].Earthquake Research in China,2001,17(1):56-69.(in Chinese)
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