Institute of Geophysics - Morelia Campus, National Autonomous University of Mexico (UNAM), 58190, Morelia, Michoacán, Mexico.
Department of Geology, Faculty of Science, Assiut University, 71516, Assiut, Egypt.
Sci Data. 2019 Oct 29;6(1):241. doi: 10.1038/s41597-019-0234-z.
Here we present a new updated and unified Poissonian earthquake catalog for Mexico. The details about the catalog compilation, the removal of duplicate events, unifying the magnitude scales, removal of dependent events through the declustering process and its completeness analysis are presented. Earthquake and focal mechanism data have been compiled from various local, regional and international sources. Large earthquake events (M ≥ 6.5) have been carefully revised for their epicentral locations and magnitudes from trusted publications. Different magnitude-conversion relationships, compatible with available local and regional ones, has been established to obtain unified moment magnitude estimates for the whole catalog. Completeness periods for the declustered catalog were estimated for the definition of appropriate seismic source models for the whole territory. The final unified Poissonian earthquake catalog spans from 1787 to 2018, covering a spatial extent of 13° to 33°N and 91° to 117°W. This catalog is compatible with other published catalogs providing basis for new analysis related to seismicity, seismotectonics and seismic hazard assessment in Mexico.
我们在此呈现一份更新后的墨西哥统一泊松型地震目录。本文详细介绍了目录编制、重复事件剔除、震级标度统一、通过去簇过程剔除相关事件以及完整性分析的相关内容。地震和震源机制数据由来自不同地方、区域和国际的来源进行了编译。大地震事件（M≥6.5）的震中位置和震级已根据可靠出版物进行了仔细修正。建立了不同的震级转换关系，与现有地方和区域的震级转换关系相兼容，以便为整个目录获得统一的矩震级估计。通过去簇过程对去簇目录的完整性时段进行了估计，以便为整个区域的合适震源模型定义提供依据。最终的统一泊松型地震目录涵盖了 1787 年至 2018 年期间的地震活动，涵盖了 13°至 33°N 和 91°至 117°W 的空间范围。该目录与其他已发布的目录兼容，为墨西哥地震活动性、地震构造和地震灾害评估相关的新分析提供了基础。
