| 唐山7.8级地震的地壳垂直形变 |
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| 引用本文： | 张祖胜,谢觉民,徐峰壮,彭苏崑.唐山7.8级地震的地壳垂直形变[J].地球物理学报,1981,24(2):182-191. |
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| 作者姓名： | 张祖胜 谢觉民 徐峰壮 彭苏崑 |
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| 作者单位： | 国家地震局测量大队 |
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| 摘 要： | 本文根据1976年唐山7.8级地震前后的水准复测资料,研究了这次地震前后大面积地壳垂直形变的特点。结果表明,在震前震中区地壳运动有一个长期缓慢运动-活跃-“平静”-发震的过程。地震前后的地形变资料表明,地壳形变与地质构造有密切的关系,震后形变与以往强烈地震的震后形变具有某些共同的特点。
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| 关 键 词： | 地壳垂直形变 唐山地震 8级地震 唐山地区 次地震 北北东向 震中区 垂直形变图 水准点 震前 |
| 收稿时间： | 1979-03-27 |
VERTICAL DEFORMATIONS ASSOCIATED WITH THE 1976 TANGSHAN M=7.8 EARTHQUAKE |
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| ZHANG ZU-SHENG XIE JUE-MIN XU FENG-ZHUANG PENG SU-KUN.VERTICAL DEFORMATIONS ASSOCIATED WITH THE 1976 TANGSHAN M=7.8 EARTHQUAKE[J].Chinese Journal of Geophysics,1981,24(2):182-191. |
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| Authors: | ZHANG ZU-SHENG XIE JUE-MIN XU FENG-ZHUANG PENG SU-KUN |
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| Affiliation: | Geodetic Brigade, State Seismological Bureau, Tianjin, China |
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| Abstract: | Some characteristics of the vertical deformation over a wide area around the epicen-tral region are examined, based on repeated precise levelling data observed before and after the 1976 Tangshan earthquake. It is shown that, the surface deformations in the epicentral region before the earthquake may be described by a succession of steadiness-activeness-"quiescence" until the occurrence of the earthquake. Furthermore, the data also show that, the deformations before and after the earthquake were closely connected with tectonic movements and the post-seismic deformation is similar to that of other strong earthquakes. |
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