地震学报（英文版）2008，Vol.21Issue(4)：398-405,8.
Magnitude and distance distribution of strong aftershocks in Sichuan-Yunnan region
Magnitude and distance distribution of strong aftershocks in Sichuan-Yunnan region
摘要
Abstract
Using the earthquake sequences data with Ms≥6.5 since 1966 in Sichuan-Yunnan region, we research the charac- teristic of the magnitude difference distribution between main shocks and their strong aftershocks; and then study the spatial distribution characteristic of the strong aftershocks away from their main shocks. The result shows that the magnitude difference distribution obeys intercepted exponential distribution, while the spatial distribution of strong aftershocks obeys normal distribution and the dominated distribution area of strong shocks is 10～39 krn away from main shock. Finally the probability density function of the magnitude difference distribution and the spatial distribution of strong aftershocks is deduced.关键词
Sichuan-Yunnan region/strong aftershock/magnitude difference distribution/spatial distributionKey words
Sichuan-Yunnan region/strong aftershock/magnitude difference distribution/spatial distribution分类
天文与地球科学引用本文复制引用
Lü Xiao-jian,GAO Meng-tan,GAO Zhan-wu,MI Su-ting..Magnitude and distance distribution of strong aftershocks in Sichuan-Yunnan region[J].地震学报（英文版）,2008,21(4):398-405,8.基金项目
Basic research program from Institute of Earthquake Science China Earthquake Administration (690206) and Social Welfare Research Program from Ministry of Science and Technology of China (2005DIB3J119). （690206）
