节点文献
川滇地区A(b)值动态演化特征及其在强震预测中的应用
Dynamic Evolution Characteristics of A(b) Value in the Sichuan-Yunnan Region and Its Application in Strong Earthquake Forecast
【摘要】 以定量描述地震活动性的A(b)值作参数,利用1971~2000年川滇地区M≥2.5地震资料进行空间扫描。结果表明,川滇地区有72%的M≥6.0地震在震前1~2 a,在震中周围出现A(b)值异常。用R值对其进行评分,通过检验。
【Abstract】 Taking the A(b) value for describing seismicity as parameter,we use the M≥2.5 earthquakes from 1971 to 2000 in the Sichuan and Yunnan regions to do a spatial scan analysis.The results show that A(b) value anomaly would appear near the epicenter 1 to 2 years before the 72% of M≥6.0 earthquakes in the Sichuan and Yunnan regions.Using R value to grade it passes the check.
【关键词】 A(b)值;
M≥6.0地震;
中短期预测;
川滇地区;
【Key words】 A(b) value; M≥6.0 earthquake; medium and short term prediction; Sichuan and Yunnan regions;
【Key words】 A(b) value; M≥6.0 earthquake; medium and short term prediction; Sichuan and Yunnan regions;
【基金】 云南省“十五”重点科技攻关项目(2001NG46)资助
- 【文献出处】 地震研究 ,Journal of Seismological Research , 编辑部邮箱 ,2005年04期
- 【分类号】P315.75;
- 【下载频次】55