中国大陆西部及其邻区强震分布特征及青海地区地震大形势分析  

CHARACTERISTICS OF STRONG EARTHQUAKE DISTRIBUTION IN CHINA WESTERN CONTINENT AND NEIGHBORING AREA AND ANALYSIS ON SEISMIC SITUATION IN QINGHAI AREA

作　　者：朱丽霞[1,2] 赵淑梅[1,2] 李光全 

机构地区：[1]青海省地震局 [2]中国科技大学地球和空间科学系

出　　处：《高原地震》1998年第4期24-29,共6页Plateau Earthquake Research

摘　　要：较详细地讨论了大陆第５强震幕中西部及邻区７级以上强震的空间分布特征，认为第５强震幕西部大三角格局呈现等间距网络状分布，强震皆位于网络节点及其边缘，目前该分布存在１个７级以上强震危险区。最后，遵从“以场为背景，以源为主”的大形势预测思路，分析讨论了青海省地震总形势及未来的主体活动区。Discussed in detail the characteristics of the spatial distribution of the strong earthquakes Ms≥7 in China western continent and its neighboring area in the fifth strong earthquake episode,the authors think that the western large triangalar pattern is charactered by equally spaced net,and the strong earthquakes are in the nodal points and their neighboring area,and there is a strong earthquake (Ms≥7) risk area in the net.They have also analyzed the general seismic situation and the main active area in the future 3 years in Qinghai province.

关 键 词：印度板块 地震活动性 等间距性 网络 地震大形势 青海地块 

分 类 号：P315.5[天文地球—地震学]