2006年9月14日担杆岛海域3.5级地震前兆异常特征研究
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摘要
通过对珠江三角洲地区前兆监测资料的分析,发现担杆岛海域3.5级地震前部分重力、体应变和水位测项有临震异常显示。研究各测项的异常起止时间、幅度以及异常台项的分布,得到此次地震的临震异常特征。
Based on the analysis of the precursor observation data around the Pearl River Delta region,it is found that there is some anomalous precursor in the data of gravity,body strain and water level before the M3.5 earthquake in the marine area near the Dangan islands.By studying on the starting and ending time,the range of the anomaly and the distribution of the stations,the anomalous precursor characteristics of this earthquake are concluded and have some referenced significance to the short-impending prediction for the moderately strong earthquake.
Based on the analysis of the precursor observation data around the Pearl River Delta region,it is found that there is some anomalous precursor in the data of gravity,body strain and water level before the M3.5 earthquake in the marine area near the Dangan islands.By studying on the starting and ending time,the range of the anomaly and the distribution of the stations,the anomalous precursor characteristics of this earthquake are concluded and have some referenced significance to the short-impending prediction for the moderately strong earthquake.
引文
[1]牛安福.地倾斜变化的突变性及与地震关系的研究[J].地震学报,2003,25(4):441-445.
[2]万永芳,叶东华,杨向东.2004年12月26日印尼8.7级强震广东地区同震效应分析[J].华南地震,2006,26(4):67-73.
[3]中国地震局预测预防司.大陆地震预报的方法和理论-中国“八五”地震预报研究进展[M].北京:地震出版社,1998,244-245.
[2]万永芳,叶东华,杨向东.2004年12月26日印尼8.7级强震广东地区同震效应分析[J].华南地震,2006,26(4):67-73.
[3]中国地震局预测预防司.大陆地震预报的方法和理论-中国“八五”地震预报研究进展[M].北京:地震出版社,1998,244-245.
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