粤桂琼交界地区地震活动若干特征  

Some seismicity features in the border area of Guandong,Guangxi and Hainan

作　　者：任镇寰[1] 华卫[1] 罗振暖[1] 李海华[2] 

机构地区：[1]广东省地震局,广东广州510070 [2]海南省地震局,海南海口570204

出　　处：《华南地震》2003年第3期25-34,共10页South China Journal of Seismology

基　　金：省重点攻关课题

摘　　要：在总结粤桂琼交界地区震例的基础上,研究了它的地震活动特征:地震空间分布受北东东向和北西向断裂控制、强震具双震和成对性,地震活动与西南地区强震存在单向相关、地震条带是强震前兆、ML≥4级地震迅速增加是强震中期信号、第二周期尚储存7 4级地震能量等。Based on having summarized the earthquake examples of the border of Guangdong, Guangxi and Hainan, we researched the seismicity features. The seismic spatial-distribution is under the control of NEE and NW faults. The strong earthquake has twin earthquake and gemination. Seismic activity has monomial correlativity with the strong earthquake of southwest area. Seismic belt is precursor of strong earthquake. The rapid increase of ML4 is the mid-term signal of strong earthquake. The M74 seismic energy is still deposited in the second period and etc.

关 键 词：地震活动特征 粤桂琼交界地区 震例研究 

分 类 号：P315.5[天文地球—地震学]