West Flank Coso FORGE: Refined Earthquake Focal Mechanism Catalog for Southern California (1981-2010)

A refined earthquake mechanism catalog for southern Califiornia using the HASH method and locations derived from waveform cross-correlation. Each focal mechanism is obtained from grid searching for the best-fitting double-couple focal mechanism solution to both the P-wave first motion polarity records that were picked by network analysts, and the S/P amplitude ratios computed from three-component seismograms. This dataset includes around 179,000 focal mechanisms for earthquakes occurring 1981 through 2010 in southern California region. Updated datasets (through 9/30/2016) are included at the bottom of the linked page.

基于 HASH 方法及波形互相关定位所得位置，构建了加利福尼亚南部地区精炼的地震机制目录。每个震源机制均通过网格搜索获取最佳拟合的双偶极震源机制解，以匹配网络分析师挑选出的P波初动极性记录以及从三分量地震图计算出的S/P振幅比。本数据集涵盖了1981年至2010年在加利福尼亚南部地区发生的约179,000个地震的震源机制。更新后的数据集（截止至2016年9月30日）包含在链接页面的底部。