A Quantitative Analysis Method of Earthquake Activities and Its Application in East China
详细信息
- 责任者：Zheng Jianchang (Earthquake Administration of Shandong Province ; Jinan 250014 ; China) ; Wang Peng
- 刊名：Earthquake
- 出版年：2011
- 卷期：31(2)
- 关键词：地震活动性 ; seismicity ; 直方图 ; histograms ; 华东地区 ; East China
- 页码：p.122-128
- 图表：6 illus., 1 table, 10 refs.
- 分类号：0500
- 出版序号：785
- issnNo：ISSN1000-3274
- isbnNo：CN11-1893/P
摘要
A new method has been proposed to analyze quantitative changes of earthquake activities based on relative intensity (RI) algorithm. Numeric tests indicate that this method can reflect some characteristics of seismic activities on space and strength. This method is applied to investigate earthquake activities in East China area since 1970. The results demonstrate that 4 moderate earthquake events all occurred at the uplift stage of similarity curves of the regional earthquake activities. 2～3 years before the moderate events,there are significant low values on similarity curves calculate on adjacent periods compared to those of 1970 reference.