通过分区分析预测华北地震危险区

PREDICTION TO THE RISK REGION OF EARTHQUAKE IN NORTH CHINA THROUGH ZONING ANALYSIS

摘要: 将华北地区(北纬37°~41.5°,东经112°~120°)以50 km×50 km为单位划分成130个小区域,统计每区内近10年(1990年~2000年8月)来所发生的地震。从时间角度分析近十年内每年各区地震宏观走向情况;从空间角度分析每区十年内地震活动情况。将具有类似特征的区域归为一类,通过分析它们的形变背景推测这些区域的地震活动情况。

Abstract: North China region(37°-41.5°N,112°-120°E)is divide into 130 zones(50km×50km).All the earthquakes occurred in recent ten years in the 130 zones are studied by statistics.The seismicity in each zone is analyzed from the temporal and spatial distribution,and the zones that have the same character are categorised into one type.Based on the crustal deformation background in each zone,the earthquake activity is predicted.