地震地磁观测与研究2017,Vol.38Issue(5):1-7,7.DOI:10.3969/j.issn.1003-3246.2017.05.001
2016年青海门源MS6.4地震特征与地质构造
Principal features and seismic-tectonics of Qinghai Menyuan MS 6.4 earthquake in 2016
摘要
Abstract
The seismic activity characteristic of Menyuan MS 6.4 earthquake in 2016 is obvious, for example, the aftershock intensity is low, the energy release level is low, and earthquake damage is relatively lightand so on. The seismic structures show certain regularity, for example, Lenglongling fault zone shows periodic rupture, and contains multiple branch faults and so on. Although activity of small earthquakes before the earthquake failed to provide valuable predictive information, the epicenter of the earthquake falls into the annual danger zone of Gansu Province in 2015. The focal mechanism solution of the earthquake, attenuation of earthquake sequence, earthquake damage characteristics and structure of Lenglongling fault zone are analyzed in this article. Then, the attribute of seismic sequence, the closing date of the aftershock sequence, the power source for fault rupture are given. Some evidences that the earthquake did not occur in the main part of Lenglongling fault zone are presented. These purposes provide reference for state of seismic activity in earthquake zone and its adjacent area and determination of the mechanism of earthquake, and provide examples and data for determination of the subsequent earthquake.关键词
冷龙岭断裂带/地震序列/震害特点/地震构造Key words
Lenglongling fault zone/earthquake sequence/earthquake damage characteristics/seism tectonics引用本文复制引用
马亮..2016年青海门源MS6.4地震特征与地质构造[J].地震地磁观测与研究,2017,38(5):1-7,7.基金项目
甘肃省地震局地震科技发展基金(项目编号:2015Q07) (项目编号:2015Q07)
中国地震局监测预报司 2016 年度震情跟踪定向工作任务资助项目(项目编号:2016010414) (项目编号:2016010414)