Spatial Centrality and Inhomogeneity of Precursory Anomalies in Liaoning Region, China
详细信息
- 责任者：Cao Fengjuan (Earthquake Administration of Liaoning Province ; Shenyang 110034 ; China) ; Jiao Mingruo
- 刊名：Earthquake
- 出版年：2013
- 卷期：33(1)
- 关键词：地震前兆 ; precursor ; 辽宁 ; Liaoning Province
- 页码：p.127-140
- 图表：illus., 3 tables, 13 refs.
- 分类号：0500
- issnNo：ISSN1000-3274
- isbnNo：CN11-1893/P
摘要
We analysed and calculate spatial centrality and inhomogeneity of precursory anomalies in Liaoning region,China since 1988.The results show that the inhomogeneity index CV value of the anomaly distribution in the short to medium term appeared obviously high value(more than or equal to one times of mean square) 1 to 3 years before M≥5.0 earthquakes happened in Liaoning and its adjacent area.The RV value of the anomaly distribution concentration was correlated positively with the anomaly frequency,negatively with the maximum magnitude,and could be used as the indicators in combination with the CV value.On condition that the CV value appeared high value,and the RV value was lower than the mean value and close to 30 km,M≥5.0 earthquake would have a high possibility in Liaoning for the next year.
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