摘要
根据统计分布与信息熵理论 ,定义了震级信息熵Hm和地震间隔时间信息熵Ht,并推导了它们的计算公式 .通过时空扫描和计算 ,发现强震前 1～ 3年Hm和Ht出现低值异常 ,与地震有较好的对应关系 ,可以作为一组中期或中短期预测指标 .
On the basis of statistical distribution and information entropy theory,information entropy of magnitude (Hm) and information entropy of interval time (Ht) are defined,and their formulas are derived.By means of specio temporal scanning and calculating,Hm and Ht appear low value anomaly in 1~3 years before strong earthquake.Having the better correlation with earthquakes,the Hm and Ht can be used as earthquake forecast indexes for mid or mid short term.
出处
《西北地震学报》
CSCD
北大核心
2003年第2期125-130,共6页
Northwestern Seismological Journal
关键词
WEIBULL分布
震级信息熵
间隔时间信息熵
Weibull distribution
Information entropy of magnitude
Information entropy of interval time
