Global Earthquake Hazard Distribution - Peak Ground Acceleration

The Global Earthquake Hazard Distribution - Peak Ground Acceleration is a 2.5 minute grid of global earthquake hazards developed using Global Seismic Hazard Program (GSHAP) data that incorporate expert opinion in predicting localities where there exists a 10 percent chance of exceeding a peak ground acceleration (pga) of 2 meters per second per second (approximately one-fifth of surface gravitational acceleration) in a 50 year time span. For the purpose of identifying hazard hotspots, values of 2 meters per second per second and less were excluded from analysis. The resulting ranges of pga values were classified into deciles, 10 classes of approximately an equal number of grid cells. This data set is the result of collaboration among the Columbia University Center for Hazards and Risk Research (CHRR) and Columbia University Center for International Earth Science Information Network (CIESIN).

全球地震灾害分布 - 极值地面加速度是一项基于全球地震灾害风险评估计划（GSHAP）数据构建的2.5分钟网格全球地震灾害分布，其中融入了专家对存在10%超越2米每秒平方（约等于地表重力加速度的五分之一）峰值地面加速度（pga）风险区域的预测意见。为识别灾害热点，2米每秒平方及以下值被排除在分析之外。所得pga值范围被划分为十等分，即大约等数量的网格单元的10个类别。该数据集是哥伦比亚大学灾害与风险评估研究中心（CHRR）与哥伦比亚大学国际地球科学信息网络中心（CIESIN）合作的结果。