摘要
2015年11月22日广东徐闻发生M_L 4.2地震,从地震序列、震中分布、震源机制解及历史地震地质构造分析认为,此次地震是主余序列,具有走滑断错特征。这次地震徐闻和海口部分地区有感,烈度达到Ⅲ-Ⅳ度。总结了此次地震的地震序列特征,讨论地震前的地球物理现象。
The Xuwen ML 4.2 earthquake occurred on November 22nd, 2015. Based on the analysis of earthquake sequence, epicenter distribution, focal mechanism and seismo-geological structure, it＇s believed that the ML 4.2 earthquake is mainshock-aftershock type with a feature of strike slip fault. The ML 4.2 earthquake with seismic intensity of Ⅲ-Ⅳ, is clearly felt in some areas of Xuwen and Haikou. This paper summarizes the seismic sequence characteristics of the ML 4.2 earthquake, and discusses the geophysical phenomenon before the earthquake
出处
《华南地震》
2017年第2期17-21,共5页
South China Journal of Seismology
关键词
徐闻地震
地震序列
地震构造
震源机制解
地球物理场现象
Xuwen earthquake
Earthquake sequence
Seismo -geological structure
Focal mechanism
Geophysical phenomenon
