粤桂琼地区地震活动环境与北流5.2级地震——地震地热说的解释

Seismicity Environment and M5.2 Beiliu Earthquake on the Border Area of Guangdong, Guangxi & Hainan—An Interpretation of Seismo-Geothermics

摘要: 本文按照地震地热说的原理与工作方法，采用中国统一地震目录和美国M4.0+的全球地震复合目录，以广西北流5.2级地震为例，研究粤桂琼地区地震活动的上地幔地震柱构造环境和地表大地构造环境，发现粤桂琼地区的中强地震活动受周边3个地震柱构造影响，表现为台湾地区壳内强震活动和通海地震的远场前兆性地震活动态势，与台湾强震几乎一一对应，其原因是粤桂琼地区的大地构造环境存在几种极易被远场地震柱构造应力场激励的扭动型构造带，也或许是海南岛地区本身存在地震柱构造而先于其它地震柱构造活动，因而对改善地震目录编制技术，提高壳内地震与壳下地震分辨率的重要性做出说明，对海南岛地震柱构造存在的可能性研究与探测提出建议，并总结了一套中强地震活动区地震预测研究的技术思路与技术方案，供有关地区的地震工作参考。

Abstract: In this paper, according to the principle and working method of the Seismo-Geothermics, using China’s unity earthquake catalogue and M4.0+ global seismic ComCat of the United States, with M5.2 Beiliu earthquake in Guangxi as an example, study regional seismic cone tectonic activity environment in upper mantle and surface tectonic activity environment in Yue-Gui-Qiong region, in Guandong, Guangxi and Hainan area, found the earthquake activities in Yue-Gui-Qiong region affected by the surrounding three seismic cone tectonics, characterized by precursory earth-quake activity situation of the strong earthquake activity in Taiwan and Tonghai in Yunnan, and almost one-to-one correspondence with the earthquakes in Taiwan, because of that in the tec-tonic environment in Yue-Gui-Qiong region there are several shear type tectonic belts, which is vulnerable to far-field seismic cone tectonic stress field excitation, or perhaps there is a seismic cone tectonic itself in Hainan island and ahead of other far-field seismic cone tectonic activities, thus to put the importance notes of improving the earthquake catalogues technology, improving the resolution of intracrustal earthquakes and subcrustal earthquakes, and a suggest of the ex-isting possibility research and exploration of Hainan Seismic Cone Tectonic, and summarizes a set of technical ideas and technical solutions of earthquake prediction research in strong earth-quake activity area far away from any seismic cone tectonic for the relevant seismic work area.