1998—2004年滇西地区重力场演化与Ms≥6.0地震
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摘要
对滇西地震实验场1998—2004年的重力时空动态演化特征的研究表明:重力场变化与该区断裂活动密切相关;相邻两期动态变化对测区内发生的2001年10月永胜6.0、2001年1月姚安6.5、2003年7月大姚6.2和2003年10月大姚6.1级地震均有较好的反映。
On the basis of the mobile gravity data in western area of Yunnan province during 1998—2004,the dynamically evolutional characteristics of gravity field in time and space are researched.The results show that 1)the changes of gravity field are closely relative to fault activity;2)the Yongshen %M %s6.0,Yaoan %M %s6.5 and Dayao %M %s6.2,%M %s6.1 earthquakes occured in the area were reflected in the sequential phase dynamic change of gravity field.
On the basis of the mobile gravity data in western area of Yunnan province during 1998—2004,the dynamically evolutional characteristics of gravity field in time and space are researched.The results show that 1)the changes of gravity field are closely relative to fault activity;2)the Yongshen %M %s6.0,Yaoan %M %s6.5 and Dayao %M %s6.2,%M %s6.1 earthquakes occured in the area were reflected in the sequential phase dynamic change of gravity field.
引文
1贾民育,孙少安.滇西实验场的重力变化与地震关系的研究[A].中国地震年鉴(1991)[C].北京:地震出版社,1992. Jia Minyu and Sun Shaoan.Gravity change in western Yun-nan and their relations to the earthquakes[A].China earth-quake Yearbook 1991[C].Beijing:Seismological Press,1992.(in Chinese)
2贾民育,邢灿飞,孙少安.滇西重力变化的二维图像及其与5级(Ms)以上地震的关系[J].地壳形变与地震,1995,15(3):9-19. Jia Minyu,Xing Canfei and Sun Shaoan.Two dimensionpictures of gravity change in westen Yunnan and their rela-tions to theMs>5 earthquakes[J].Crustal Deformationand Earthquake,1995,15(3):9-19.(in Chinese)
3孙少安,项爱民,李辉.滇西与北京区域重力场演化及其与地震关系的探讨[J].地震,1999,19(1):97-105. Sun Shaoan,Xia Aiming and Li Hui.Evolution of the gravityfields and its relation with earthquake in the areas of westenYunnan and Beijing[J].Earthquake,1999,19(1):97-105.(in Chinese)
4申重阳,等.滇西重力断层运动时间分布特征的初步研究[J].大地测量与地球动力学,2002,22(2):69-74. Shen Chongyang,et al.Preliminary study on characteristicsof time distribution of fault movement by gravity data in west-ern Yunnan[J].Journal of Geodesy and Geodynamics,2002,22(2):69-74.(in Chinese)
5李辉,等.滇西地区重力场动态变化计算[J].地壳形变与地震,2000,20(1):60-66. Li Hui,et al.Computation on dynamic gravity changes inwesten Yunnan[J].Crustal Deformation and Earthquake,2000,20(1):60-66.(in Chinese)
6孙少安,项爱民.区域重力场相对基准的建立[J].地壳形变与地震,1999,19(1):78-81. Sun Shaoan and Xiang Aimin.Establishment of relative da-tum for regional gravity filed[J].Crustal Deformation andEarthquake,1999,19(1):78-81.(in Chinese)
7贾民育,邢灿飞,孙少安.滇西实验场重力资料的最佳解[J].地震学报,1994,16(增刊):100-108. Jia Minyu,Xing Canfei and Sun Shaoan.The best analysis ofgravity measurements in western Yunnan[J].Acta Seis-mologica Sinica,1994,16(Supp.):100-108.(in Chi-nese)
8贾民育,等.首都圈地区地震重力测量数据的统一处理与分析[J].地震学报,2006,28(4):408-416. Jia Mingyu,et al.Joint processing and analysis of seismicgravity measurements in area around capital of China[J].Acta Seismologica Sinica,2006,28(4):408-416.(in Chi-nese)
9祝意青,等.河西地区重力场及其动态演化特征[J].大地测量与地球动力学,2003,23(4):44-48. Zhu Yiqing,et al.Study on gravity field and its dynamic ev-olutional characteristics in Hexi area[J].Journal of Geodesyand Geodynamics,2003,23(4):44-48.(in Chinese)
10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. Zhu Yiqing,et al.Research on the variation of gravity fieldbefore MinleMs 6.1 and MinxianMs 5.2 earthquakes[J].Journal of Geodesy and Geodynamics,2005,25(1):24-29.(in Chinese)
2贾民育,邢灿飞,孙少安.滇西重力变化的二维图像及其与5级(Ms)以上地震的关系[J].地壳形变与地震,1995,15(3):9-19. Jia Minyu,Xing Canfei and Sun Shaoan.Two dimensionpictures of gravity change in westen Yunnan and their rela-tions to theMs>5 earthquakes[J].Crustal Deformationand Earthquake,1995,15(3):9-19.(in Chinese)
3孙少安,项爱民,李辉.滇西与北京区域重力场演化及其与地震关系的探讨[J].地震,1999,19(1):97-105. Sun Shaoan,Xia Aiming and Li Hui.Evolution of the gravityfields and its relation with earthquake in the areas of westenYunnan and Beijing[J].Earthquake,1999,19(1):97-105.(in Chinese)
4申重阳,等.滇西重力断层运动时间分布特征的初步研究[J].大地测量与地球动力学,2002,22(2):69-74. Shen Chongyang,et al.Preliminary study on characteristicsof time distribution of fault movement by gravity data in west-ern Yunnan[J].Journal of Geodesy and Geodynamics,2002,22(2):69-74.(in Chinese)
5李辉,等.滇西地区重力场动态变化计算[J].地壳形变与地震,2000,20(1):60-66. Li Hui,et al.Computation on dynamic gravity changes inwesten Yunnan[J].Crustal Deformation and Earthquake,2000,20(1):60-66.(in Chinese)
6孙少安,项爱民.区域重力场相对基准的建立[J].地壳形变与地震,1999,19(1):78-81. Sun Shaoan and Xiang Aimin.Establishment of relative da-tum for regional gravity filed[J].Crustal Deformation andEarthquake,1999,19(1):78-81.(in Chinese)
7贾民育,邢灿飞,孙少安.滇西实验场重力资料的最佳解[J].地震学报,1994,16(增刊):100-108. Jia Minyu,Xing Canfei and Sun Shaoan.The best analysis ofgravity measurements in western Yunnan[J].Acta Seis-mologica Sinica,1994,16(Supp.):100-108.(in Chi-nese)
8贾民育,等.首都圈地区地震重力测量数据的统一处理与分析[J].地震学报,2006,28(4):408-416. Jia Mingyu,et al.Joint processing and analysis of seismicgravity measurements in area around capital of China[J].Acta Seismologica Sinica,2006,28(4):408-416.(in Chi-nese)
9祝意青,等.河西地区重力场及其动态演化特征[J].大地测量与地球动力学,2003,23(4):44-48. Zhu Yiqing,et al.Study on gravity field and its dynamic ev-olutional characteristics in Hexi area[J].Journal of Geodesyand Geodynamics,2003,23(4):44-48.(in Chinese)
10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. Zhu Yiqing,et al.Research on the variation of gravity fieldbefore MinleMs 6.1 and MinxianMs 5.2 earthquakes[J].Journal of Geodesy and Geodynamics,2005,25(1):24-29.(in Chinese)
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