【摘要】 介绍了2019年3月28日青海茫崖Ms5.0级地震的构造背景、地震序列、震源机制解和视应力特征。结果表明:本次地震的发震构造位于油沙山—茫崖断裂带,地震序列类型为主震—余震型,震源机制解为逆冲型,视应力位于青海地区M_L≥3.0视应力均值线附近,序列视应力变化稳定。该结果有利于认识和了解本次茫崖Ms5.0级地震,为该区域中强地震对比分析研究提供参考依据。更多还原

【Abstract】 This paper introduces the geological structure background, earthquake sequence, focal mechanism solution and apparent stress characteristics of Mangya Ms5.0 earthquake on March 28, 2019 in Qinghai Province. The seismogenic structure of this earthquake is Youshashan-Mangya fault. The seismic sequence is main-aftershock type. The focal mechanism solution is thrusting type. The apparent stress is located near the mean line, and the variation of apparent stress is stable. The results are helpful for us to know and understand Mangya Ms5.0 earthquake, and provide reference for comparative analysis of moderate-strong earthquakes in this area.更多还原