赣北及邻区地震条带的视应力分析

Analysis on apparent stress of seismic belt in Northern Jiangxi and its periphery

摘要: 对赣北及邻区2014年以来的地震条带及视应力进行了分析。结果表明：江西丰城—安徽蒙城2014年10月—2015年6月快速形成M_L≥3.0地震条带，地震条带及周边地区的视应力均值为0.49 MPa，条带上的地震视应力高于条带以西地区，低于条带以东的江苏北部地区。2009年4月以来江西瑞昌—南黄海出现M_L≥4.0地震条带，条带及周边地区的视应力均值为1.72 MPa，条带上的视应力水平高于条带外。视应力总体呈现随震级增大而增大的特点。

Abstract: In this paper, seismic belt and apparent stress are analyzed in Northern Jiangxi and its periphery since 2014. The results showed that a M_L≥3.0 seismic belt appeared rapidly along Jiangxi Fengcheng—Anhui Mengcheng from October 2014 to June 2015. The average value of apparent stress is 0.49 MPa in seismic belt and the surrounding area. Apparent stress in the belt is higher than that in the west, and is lower than that of northern Jiangsu. For the M_L≥4.0 seismic strip along Jiangxi Ruichang—South Yellow Sea since April 2009, the average value of apparent stress is 1.72 MPa in the seismic strip and the surrounding area where the value in the strip is higher than that outside. The apparent stress overall increases along with the magnitude.