山东中部一条明显的北西向中强地震带  

AN EVIDENT NW-TRENDING SEISMIC ZONE OF MEDIUM-STRONG EARTHQUAKE IN CENTRAL SHANDONG PROVINCE

作　　者：晁洪太[1] 李家灵[1] 崔昭文[1] 王志才[1] 杜宪宋[1] 

机构地区：[1]山东省地震局,济南250021

出　　处：《华北地震科学》1998年第2期23-29,共7页North China Earthquake Sciences

摘　　要：长清—临沂地震带是山东中部一条明显的北西向中强地震带，由9次中强地震组成。这些地震沿北西向展布，主要分布在四个震源区，大致呈50～55km等间距分布。除1668年郯城地震与北北东向的郯庐断裂带有关外，其它地震受北西向蒙山断裂控制，是该断裂各断层段新活动的结果。另外，该地震带内地震的发生还有一定深部构造背景。未来应注意研究该带内再次发生中强地震的可能。Changqing-Linyi seismic zone, which consists of 9 historical medium strong earthquakes , is an evident seismic zone in central Shandong Province. These earthquakes were distributed in four seismic regions with 50-55Km iso-separation along NW-trending. Except the 1668 Tancheng earthquake (M=8 1/2) generated by NNE-trending Tanlu (Tancheng-Lujiang) fault zone, other earthquakes were controlled by Mt. Mengshan fault with NW-trending. They were the results of activities of each segment along Mt.Mengshan fault. Moreover, this seismic zone has a deep structure background. In furure, some attention should be paid to the possibility of the reoccurence of medium-strong earthquakes along this seismic zone.

关 键 词：地震活动带 地震条带 断层活动性 山东 地震 

分 类 号：P315.5[天文地球—地震学]