Master earthquake catalog composed of pre-existing source catalogs

The U. S. Geological Survey (USGS) makes long-term seismic hazard forecasts that are used in building codes. The hazard models usually consider only natural seismicity; non-tectonic (man-made) earthquakes are excluded because they are transitory or too small. In the past decade, however, thousands of earthquakes related to underground fluid injection have occurred in the central and eastern U.S. (CEUS), and some have caused damage. In response, the USGS is now also making short-term forecasts that account for the hazard from these induced earthquakes. A uniform earthquake catalog is assembled by combining and winnowing pre-existing source catalogs. Seismicity statistics are analyzed to develop recurrence models, accounting for catalog completeness. In the USGS hazard modeling methodology, earthquakes are counted on a map grid, recurrence models are applied to estimate the rates of future earthquakes in each grid cell, and these rates are combined with maximum-magnitude models and ground-motion models to compute the hazard. The USGS published a forecast for the years 2016 and 2017. This data set is the master earthquake catalog composed of several pre-existing source catalogs.

美国地质调查局（U.S. Geological Survey, USGS）会编制长期地震灾害预测成果，该成果被应用于建筑规范的制定。传统灾害模型通常仅考虑天然地震活动，排除非构造（人工）地震，原因在于此类地震或具有临时性，或震级过小。然而在过去十年间，美国中部及东部地区（CEUS）发生了数千起与地下流体注入相关的地震，其中部分地震已造成破坏。为此，USGS目前也在开展针对这类诱发地震灾害的短期预测工作。
研究团队通过整合并筛选现有源目录，构建了统一地震目录。通过分析地震活动统计特征以建立复发模型，并同步考虑目录完整性的影响。在USGS的灾害建模方法体系中，首先将地震按地图网格进行统计计数，随后应用复发模型估算每个网格单元内未来地震的发生速率，再将该速率与最大震级模型、地面运动模型相结合，最终计算得到灾害风险。
USGS曾发布2016至2017年的地震灾害预测成果。
本数据集即为整合多份现有源目录所形成的主地震目录。