摘要
叙述了对 1999年 11月 1日山西大同—阳高 Ms5 .6地震的宏观考察情况 ,确定了宏观震中的烈度 ,圈定了 度、 度、 度烈度区的范围。指出极震区呈椭圆形 ,长轴北西向 ,长 9.6 km ,短轴北东向 ,长 4.2 km,面积约 32 .0 km2。阐述了震前宏观异常现象及震区的地质构造环境 ,得出了本次地震的发震构造为团堡断裂的结论。
The macroseismic intensity survey of the Ms5 6 earthquake in Datong Yanggao,Shanxi of 1999 is introduced The macroseismic epicenter and the seismic intensity lines of the Ⅶ、Ⅵ and Ⅴ degree were ascertained The meizoseismal region appears ellipse,the long axes spread in northwest and is 9 6km, the short axes spread in northeast and is 4 2 km,the area is 32 0 km 2 The macroscopic precursor prior to the earthquake and earthquake structure are set forth The conclusion that seismogenic fault is Tuanbu fault is acquired
出处
《山西地震》
2000年第1期2-6,共5页
Earthquake Research in Shanxi
关键词
宏观地震烈度调查
发震断层
大同--阳高地震
Macroseismic intensity survey
Seismogenic fault
Intensity evaluation
Datong Yanggao earthquake
