东南地洼区(部分地区)地震迁移特征

东南地洼区(部分地区)M≥5级地震活动首先从江西南昌—信丰、闽东南沿海和粤西—桂东三个地区发起,然后垂直或斜交区域主要断裂走向向外迁移。地震活动带的迁移与莫霍面形态变化存在某种联系。根据地震迁移规律,福建政和—南平—带在未来一、二百年内有可能发生6级左右地震,广东韶关—湖南长沙一带可能是未来5级左右地震活跃区。

MIGRATION FEATURES OF EARTHQUAKES IN DIWA REGION OF SOUTHEAST CHINA

The earthquakes of M≥5 in the diwa region of SE.China generated from the areas of Nanchang-Xinfeng,Shantuo-Fuzhou and Wuzhou- Liuzhou,and then migrated outwards across the main faults.The migration of the seismic zones was related with the Moho in certain extent. According to the migrational features of earthquakes,the auther considers that an earthquake of M≈6 will probablly occur in the area of Nanping- Zhenghe,and the area of Changsha-Shaoguan may probablly become a seismic active region with earthquakes of M≈5 in the next 200 years.