Microseismicity earthquake catalog, Endeavour Segment, Juan de Fuca ridge, 1995-2023

This microseismicity catalog is derived from three separate local ocean-bottom seismometer networks on the Endeavour Segment of the Juan de Fuca ridge. The earthquake locations in this catalog from the first network, deployed from June-August 1995, are relocations of the Wilcock (2002, doi:10.1029/2001JB000505) earthquake catalog (doi:10.1594/IEDA/306478). Earthquake locations from the second network, deployed from August 2003-October 2006, are relocations of the Weekly et al. (2013, doi:10.1002/ggge.20105) earthquake catalog (doi:10.1594/IEDA/321736). The third network is part of the Ocean Networks Canada NEPTUNE cabled observatory. We include newly-published earthquake locations for this network for August 2016-February 2021 as JdF_Endeavour_earthquake_catalog_v1.txt. The data file is in ASCII text format and the header block describes the content. Not all earthquakes have an estimated moment due to selection criteria. Details of the methods used to locate earthquakes from all three deployments may be found in Krauss et al. (2023, doi:10.1029/2022JB025662). An updated datafile, which includes an extended earthquake catalog from the Ocean Networks Canada NEPTUNE cabled observatory (network code NV) covering August 2016-December 2023, is available as JdF_Endeavour_earthquake_catalog_v2.txt. This version 2 file does not contain earthquakes from 1995 or from 2003-2006. Earthquake moments do not have station corrections applied as in Krauss et al. (2023, doi:10.1029/2022JB025662), but are simply the median of all moment estimates between stations. The data set was generated as part of the project titled "Microearthquakes on the Endeavour Segment, Juan de Fuca Ridge: A Near Real Time Earthquake Catalog for the ONC Cabled Observatory and a Reanalysis of Historical Data". Funding was provided by NSF grant OCE-1833419.

本微地震活动目录源自胡安·德·富卡洋脊（Juan de Fuca Ridge）恩代弗段（Endeavour Segment）的三个独立本地海底地震仪（ocean-bottom seismometer）台网。第一个台网部署于1995年6月至8月，其目录内的地震定位结果为Wilcock（2002，doi:10.1029/2001JB000505）地震目录（doi:10.1594/IEDA/306478）的重新定位成果。第二个台网部署于2003年8月至2006年10月，其地震定位结果为Weekly等人（2013，doi:10.1002/ggge.20105）地震目录（doi:10.1594/IEDA/321736）的重新定位成果。第三个台网隶属于加拿大海洋网络（Ocean Networks Canada）NEPTUNE缆式观测站（NEPTUNE cabled observatory），本数据集收录了该台网2016年8月至2021年2月期间新发布的地震定位结果，存储为文件JdF_Endeavour_earthquake_catalog_v1.txt。该数据文件采用ASCII文本格式，文件头区块对数据内容进行说明。受筛选标准限制，并非所有地震均配有地震矩估算值。有关三个台网地震定位方法的详细细节，可参考Krauss等人（2023，doi:10.1029/2022JB025662）的相关研究。另有更新版数据文件JdF_Endeavour_earthquake_catalog_v2.txt，其中包含台网代码为NV的加拿大海洋网络NEPTUNE缆式观测站2016年8月至2023年12月的扩充地震目录。该V2版本文件未包含1995年及2003-2006年的地震数据。与Krauss等人（2023，doi:10.1029/2022JB025662）的处理方式不同，本数据集中的地震矩未进行台站校正，仅取所有台站地震矩估算值的中位数。本数据集是题为《胡安·德·富卡洋脊恩代弗段微地震：面向ONC缆式观测站的近实时地震目录与历史数据再分析》项目的研究成果，项目资助来自美国国家科学基金会（National Science Foundation, NSF）编号为OCE-1833419的拨款项目。