东南沿海地震带的地震丛集窗及震级结构特征分析

英文篇名：A study on the seismic swarming windows and magnitude structure features of the Southeast China coastal seismic belt
中文刊名：地震
英文刊名：Earthquake
作者：吕坚 ; 张福平 ; 高建华 ; 刘吉夫 ; 邓世柄 ; 许继忠
英文作者：LU Jian1 ; ZHANG Fuping1 ; GAO Jianhua1 ; LIU Jifu1 ; DENG Shibing2 ; XU Jizhong2(1.Seismological Bureau of Jiangxi Province ; Jiangxi ; Nanchang 330039 ; 2.Huichang Seismic Station of Jiangxi Province ; Jiangxi ; Huichang 342600)
中文关键词：东南沿海地震带 ; 地震丛集窗 ; 震级结构 ; 密集震级 ; 前兆震群
英文关键词：Southeast China coastal seismic belt ; Seismic swarming window ; Magnitude structure ; Concentration magnitude ; Precursory seismic swarm
出版日期：2003-02-26
机构：江西省地震局,江西省地震局,江西省地震局,江西省地震局,江西省会昌地震台,江西省会昌地震台江西南昌　330039 ,江西南昌　330039 ,江西南昌　330039 ,江西南昌　330039 ,江西会昌　342600 ,江西会昌　342600
年：2003
期：01
出版单位：地震

摘要

基于东南沿海地震带的地震活动特点和构造背景,确定了若干个地震活动特别集中的区域,并引入地震丛集窗和震级结构的概念分析这些区域的局部特点。结果表明,这些地震丛集窗的地震活动水平变化反映了所属大区的应力状态,当某个地震丛集窗发生震级结构异常,具备前兆震群特征的地震密集事件时,该地震丛集窗内或其相关部位的介质性状可能发生了变化,这对以后可能对应发生中强地震或强震具有一定的中期预测效能。
On the basis of the seismic activity feature and tectonic background of the Southeast China coastal seismic belt, several locations where seismic activity is highly concentrated are determined, and the seismic swarming windows and magnitude structure concepts are introduced to analyze the partial features of these locations. The results show that the seismic activity level changes of these seismic swarming windows reflect the stress state of the large area where the earthquakes occurred. When some seismic swarming windows show the anomaly of their magnitude structure and seismic swarming events with the features of precursory seismic swarms, it probably indicates that the medium properties of those seismic swarming windows or their related parts have been changed. Therefore, this method has some efficiency in midterm prediction of the moderately strong earthquakes or strong events.

引文

[1]　王健.地震活动性震级结构特征及其应用研究[D].博士学位论文,北京:中国地震局地球物理研究所,1999.
[2]　袁定强,王健.1999年福州震群的特征及其意义[J].中国地震,2000,16(4):327-333.