| ??????5.1??????????????仯 |
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| 引用本文： | 孙铭心,刘善华,杨怀宁.??????5.1??????????????仯[J].大地测量与地球动力学,2008,28(2):16-21. |
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| 作者姓名： | 孙铭心 刘善华 杨怀宁 |
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| 作者单位： | 中国地震应急搜救中心,北京,100049 |
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| 摘 要： | ??2006??7??4???????5.1???????????????????????????????仯??????????????о??????????????????????????????????????仯?????????ж??????????????????????????????????о???????????????????????????????????????????5.1????????2004??1?o??????5.0??????????????仯??????????????
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| 关 键 词： | ??????? ?????? ???????仯 ?????????? ??????? |
| 文章编号： | 1671-5942(2008)02-0016-06 |
| 修稿时间： | 2008年1月11日 |
GRAVITY VARIATION BEFORE WENAN Ms5.1 EARTHQUAKE |
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| Sun Mingxin,Liu Shanhua,Yang Huaining.GRAVITY VARIATION BEFORE WENAN Ms5.1 EARTHQUAKE[J].Journal of Geodesy and Geodynamics,2008,28(2):16-21. |
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| Authors: | Sun Mingxin Liu Shanhua Yang Huaining |
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| Institution: | National Earthquake Response Suppor Service, Beijing 100049 |
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| Abstract: | The anomalous variation and dynamic evolution characteristics of the gravity field in the Capitol region in the seismogenic process of the Wenan Ms5.1 earthquake on July 4,2006 are studied.The results show that the up-down-up variations of gravity before earthquake are the obvious reflection of medium-shout-term anomaly.The dynamic patterns of gravity field reflect clearly the evolutionary process of the gravity field: quasi-homogeneous state-non-homogeneous state-earthquake occurrence.There is similar evolution characteristics of the gravity field between Wenan Ms 5.1 earthquake and of Luanxian ML5.0 earthquake on January 20,2004. |
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| Keywords: | Wenan earthquake gravity anomaly variation of gravity field seismogenic body impending evolution characteristics |
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