中国南北地震带1900年以来强震的时空分布特征及其预报意义  

TIME-SPACE DISTRIBUTION CHARACTERISTICS OF STRONG EARTHQUAKE ALONE NORTH-SOUTH TECTONIC BELT IN CHINA SINCE 1900 AND ITS PREDICTION VALUE

作　　者：陈文德[1] 

机构地区：[1]四川省地震局地震地质队

出　　处：《四川地震》1997年第3期17-22,共6页Earthquake Research in Sichuan

摘　　要：根据1900年以来发生在南北地震带上的大震资料，分析研究了强震的时空分布认为：①南北地震带地震主体活动地区每幕往南平均滑移约300公里；②从1988年开幕的南北地震带第Ⅳ个地震活跃幕在1996年2月3日云南丽江7．0级地震后可能已接近闭幕。该带的地震活动性可能会逐渐减弱。Based on the strong earthquakes occured alone North-south tectonic belt in China since 1900, the time-space distribution characteristics of the earthquake is analyzed. Two conclusions are put forward:1 the seismicity migration distance between two seismic episodes is about 300 kilometer southward;2 The fourth seismic episode began in 1988 and may end with Feb. 3, 1996 Lijiang M7. 0earthquake and the degree of seismicity will decrease.

关 键 词：地震活动幕 地震带 地震活动迁移 强震 地震预报 

分 类 号：P315.5[天文地球—地震学] P315.7[天文地球—固体地球物理学]