摘要
简要介绍了中国大陆地震活动的特点,显示中国大陆强震活动主要在包括南北地震带在内的中国西部地区,尤以青藏高原内部的地震活动最强.近年来7级以上大地震更多集中在巴颜喀喇地块边界附近.2014年5级以上地震主要分布在中国西部地区,南北地震带南段的川滇境内6级以上地震频发.余震活动及地震序列的分析显示,对于不同震型特点的强震序列,其地震序列的衰减特性和活动性参数具有不同特点.
This paper simply introduced the characteristics of earthquake activities in Chinese mainland. Strong earthquakes are mainly in west part of China,including North-South seismic belt,most frequent within Tibetan plateau. Recently large earthquakes magnitudes larger than 7 occurred mostly around boundary of Bayan Har block.In 2014,earthquakes magnitudes larger than 5 were mainly in west part of China. Strong earthquakes,magnitudes6 or larger,frequently occurred in south part of North-South seismic belt,within Scihuan and Yunnan. Analysis of aftershocks and earthquake sequences suggests that sequences of strong earthquakes of different types show different characteristics of attenuation and parameters of seismicity.
出处
《安徽师范大学学报（自然科学版）》
CAS
2015年第1期1-7,共7页
Journal of Anhui Normal University(Natural Science)
基金
国家自然科学基金(41174042)
地震预测研究所基本科研业务费专项(2012IES0101)
关键词
地震活动
地震序列
余震
巴颜喀喇地块
南北地震带
earthquake activity
earthquake sequence
aftershock
Bayan Har block
North-South seismic belt
