地震波传播理论与地震“孕育”、发生和发展的深部介质和构造环境  

The seismic wave propagation theory and the deep medium and tectonic environment of the earthquake "pregnancy",generation and development

作　　者：滕吉文[1] 张中杰[1] 杨顶辉[2] 张永谦[1] 张雪梅[1] 杨辉[1] 阮小敏[1] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029 [2]清华大学数学科学系,北京100084

出　　处：《地球物理学进展》2009年第1期1-19,共19页Progress in Geophysics

基　　金：973计划项目(2008CB425700);汶川地震断裂带科学钻探(2008)联合资助

摘　　要：地震灾害是人类生存、社会与经济发展所面临的重大自然灾害之一,由于地震震源和其周边介质在力源作用下可产生微破裂并逐渐形成“破裂链”,而震源区介质的质点震动则以地震波动和辐射为“载体”,且向四周传播.为此,可通过研究地震波传播波场的运动学和动力学响应探索地震“孕育”、发生和发展中的深部介质和构造环境,地震波动的轨迹和其发生的力源机制以及强烈地震活动的深层过程和动力成因,此乃是探索防震减灾和地震预测的核心所在.因此,研究地震波在复杂介质中的传播和响应,地球内部物质与能量的交换和其深层动力过程将必制约着地震的活动和“孕育”空间.这是防震减灾和地震预测中必须深化研究的重要领域.Earthquake is one of the main disasters in our society.Because the micro-rupture and rupture chain around the earthquake source propagate as the motion of particles and seismic wave propagation,it becomes the core issue of earthquake prediction and prevention to explore the mechanic source,the deep process and dynamic reason through the research in the kinematic and dynamic characters of the seismic wave propagation.Therefore,the earthquake activities and ＂pregnancy＂ space are associated with by the exchange of the substance and energy in the earth interior as well as its deep dynamic process.The research on the seismic wave propagation in complex media is a key field which we must pay much attention in the earthquake prediction and prevention.

关 键 词：地震波传播 地震“孕育”介质与构造环境 破裂响应 动力机制 

分 类 号：P315[天文地球—地震学]