| 粤闽地区水化学地震前兆异常特征分析 |
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| 引用本文： | 叶秀薇,杨马陵,贾庆华.粤闽地区水化学地震前兆异常特征分析[J].地震地磁观测与研究,2004,25(6):17-23. |
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| 作者姓名： | 叶秀薇 杨马陵 贾庆华 |
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| 作者单位： | 中国,广州,510070,广东省地震局;中国,广州,510070,广东省地震局;中国,广州,510070,广东省地震局 |
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| 基金项目： | 国家“十五”攻关科技项目,强地震短临预测技术研究2001BA601B0403 |
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| 摘 要： | 研究了粤闽两省及其近海近年来2次强震以及6个中等地震水化学前兆资料，结果表明，中等地震与强震的水化学前兆异常在数量上有着显著的差异，中等地震震前以中短期及短临异常变化为主，而强震前则超过三分之一的水化学测项出现持续1～4年的长趋势异常变化。同时研究表明，单凭水化异常出现的集中程度对未来震中作出预测是无统计依据的。
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| 关 键 词： | 水化学异常 地震前兆 粤闽地区 |
| 文章编号： | 1003-3246(2004)05-0017-07 |
| 修稿时间： | 2004年5月17日 |
The features of hydrochemical precursor in Guangdong and Fujian Province |
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| Ye Xiuwei,Yang Maling,Jia Qinghua.The features of hydrochemical precursor in Guangdong and Fujian Province[J].Seismological and Geomagnetic Observation and Research,2004,25(6):17-23. |
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| Authors: | Ye Xiuwei Yang Maling Jia Qinghua |
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| Abstract: | We have studied 6 moderate earthquakes and 2 strong earthquakes occurred in Guangdong,Fujian and coastal regions.The results show that hydrochemical precursors anomaly betreen moderate earthquakes and strong earthquakes are obviously different in total.The main hydrochemical precursor for moderate earthquakes is short term and impending anomaly,but the one for strong earthquakes is long term anomaly.Before the strong earthquakes occurred over third items anomaly appeared for 1~4 years.The results also indicate that forecasted epicenter according to place of hydrochemical precursor appearance is lack of statistical basis. |
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| Keywords: | hydrochemical precursor seismic precursor Guangdong and Fujian Province |
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