地震地磁观测与研究2017，Vol.38Issue(1)：32-37,6.DOI:10.3969/j.issn.1003-3246.2017.01.006
2015年4月15日阿拉善左旗MS5.8地震序列特征
The sequence character of Alashan Left Banner MS 5.8 earthquake on April 15, 2015
摘要
Abstract
Alashan Left Banner MS 5.8 earthquake occurred in the Inner Mongolia Autonomous Region on April 15, 2015. The epicenter was located in the northwest edge of Ordos block, the northern tip of Jilantai fault basin. Since Paleocene, the region is strongly affected by the Himalayan motion and the Alashan block sharply upraising. The fault activities intensified and the region seismic activity is very frequent in recent years. The overall distribution of earthquake sequence distribution is quite concentrated. The distribution of the main part is in NEE and the sequence type is main shock-aftershock type. The long axis of focal mechanism and intensity investigation of meizoseismal area is in NEE, which is similar with Dengkou—Benjing hidden active faults. Through the comprehensive judgment, it shows that the fault may be the seismogenic structure of the MS 5.8 earthquake.关键词
MS5.8地震/地震序列/震源机制/主余型地震Key words
MS 5.8earthquake/earthquakeparameters/earthquakesequenc/mainaftershockearthquake引用本文复制引用
魏建民,韩晓明,张帆,李彬..2015年4月15日阿拉善左旗MS5.8地震序列特征[J].地震地磁观测与研究,2017,38(1):32-37,6.基金项目
内蒙古自治区地震局局长基金课题(批准号:2016ZF01) （批准号:2016ZF01）
