| The mechanism of regional gravity changes before and after the Tangshan earthquake |
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| 作者姓名： | 李瑞浩 黄建梁 李辉 陈冬生 |
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| 作者单位： | RUI HAO LI JIAN LIANG HUANG HUI LIDONG SHENG CHENInstitute of Seismology，State Seismological Bureau，Wuhan 430071，China |
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| 摘 要： | ＴｈｅｍｅｃｈａｎｉｓｍｏｆｒｅｇｉｏｎａｌｇｒａｖｉｔｙｃｈａｎｇｅｓｂｅｆｏｒｅａｎｄａｆｔｅｒｔｈｅＴａｎｇｓｈａｎｅａｒｔｈｑｕａｋｅＲＵＩ－ＨＡＯＬＩ（李瑞浩）ＪＩＡＮ－ＬＩＡＮＧＨＵＡＮＧ（黄建梁）ＨＵＩＬＩ（李辉）ＤＯＮＧ－ＳＨＥＮＧ...
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| 收稿时间： | 19 April 1996 |
| 修稿时间： | 21 January 1997 |
The mechanism of regional gravity changes before and after the Tangshan earthquake |
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| RUI HAO LI JIAN LIANG HUANG HUI LIDONG SHENG CHENInstitute of Seismology,State Seismological Bureau,Wuhan ,China.The mechanism of regional gravity changes before and after the Tangshan earthquake[J].Acta Seismologica Sinica(English Edition),1997,10(4):497-500. |
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| Authors: | RUI HAO LI JIAN LIANG HUANG HUI LIDONG SHENG CHENInstitute of Seismology State Seismological Bureau Wuhan China |
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| Institution: | (1) Institute of Seismology, State Seismological Bureau, 430071 Wuhan, China |
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| Abstract: | There were 34 times repeated gravity measurements along Beijing, Tianjin, and Tangshan from 1971 to 1981. The gravity field
around the Tangshan area continuously increased about 98×10−8 m · s−2 from 1971–1975. The peaks of the gravity changes occurred in the middle of 1975. Preliminary study of mechanism of the gravity
changes before and after the Tangshan earthquake was done with combination of deformation and seismic data in the area. The
final results show that the deep boundary surface up lifted with a rate of 2.5 m/a in the Tangshan area from 1971–1975. |
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| Keywords: | Tangshan earthquake gravity field ground surface deformation |
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