构造地震和塌陷地震的特征分析  

ANALYSIS OF THE CHARACTERISTICS OF TECTONIC EARTHQUAKES AND COLLAPSE EARTHQUAKES

作　　者：曹肃朝[1] 

机构地区：[1]河北省地震局

出　　处：《华北地震科学》1993年第1期52-61,共10页North China Earthquake Sciences

摘　　要：本文对构造地震和塌陷地震进行了对比分析,找出了它们的特征。指出了构造地震的波速大于塌陷地震的波速;构造地震波的视出射角大于塌陷地震的视出射角;塌陷地震S波最大振幅随距离的衰减比构造地震快。In this paper, a comparison analysis of tectonic earthquakes and collapse earthquakes is made, and their characteristics have been found. It is pointed out that the wave velocity of tectonic earthquakes is larger than that of collapse earthquakes, the apparent emergent angle is larger than that of collapse earthquakes; the attenuation of the maximum amplitude of s wave of collapse earthquakes with time is faster than that of tectonic earthquakes. It is obtained that the attenuation coefficient of coda wave of tectonic earthquaes is k_(tectnoic)=1. 69, the attenuation coefficient of coda wave of collapse earthquakes k_(collapse)=1.13, therefore the coda wave attenuation of collapse earthquakes is slower than that of tectonic one The quality factor of earth medium obtained by tectonic earthquakes is larger than that obtained by collapse earthquakes, and the values of the quality factors are also different in mountain areas and plains,

关 键 词：构造地震 塌陷地震 地震波 地震 

分 类 号：P315.2[天文地球—地震学]