Dynamic Gravity Change in Beijing Area before and after M<SUB>S6.1 Datong
详细信息
- 责任者：Liu Shanhua (National Earthquake Response Suppor Service ; Beijing 100049 ; China) ; Li Min
- 刊名：Journal of Seismological Research
- 出版年：2011
- 卷期：34(2)
- 关键词：强震 ; strong earthquakes ; 重力场 ; gravity field ; 北京 ; Beijing ; 河北 ; Hebei Province ; 天津 ; Tianjin ; 山西 ; Shanxi Province
- 页码：p.148-152
- 图表：4 illus., 12 refs.
- 分类号：0500
- issnNo：ISSN1000-0666
- isbnNo：CN53-1062/P
摘要
Summary name="EnDivSummary">The authors compute the observed data provided by the gravity network in Beijing from 1986 to 1996, and get the dynamic pattern of the gravity field in the capital area during the seismogenic process of the MS6.1 Datong earthquake in 1989 in Shanxi Province. The authors find that the positive gravity variation lasted for 3 years in the seimogenic process of the earthquake. The variation pattern is ascent, accelerated ascent, and descent, which is similar with that in the seismogenic process of the MS7.8 Tangshan earthquake in 1976.