Catalog of earthquakes at Axial Seamount relocated with three-dimensional P- and S-wave velocity models from a joint inversion of earthquake arrival times for velocity and hypocentral parameters

This data set comprises an earthquake catalog derived by relocating earthquakes on Axial Seamount from January 2015 through February 2017 using 3-D P-wave and S-wave velocity models obtained from a joint inversion of earthquake P-wave and S-wave arrival times for velocity structure and earthquake locations. The arrival times were obtained from the seismic network on the Ocean Observatories Initiative Cabled Array at Axial Seamount. The study that obtained the catalog is described in Baillard and Wilcock (2019). The catalog is presented in two files, one that includes only hypocenters and one that includes both hypocenters and phase information. Both files are in NonLinLoc format. NonLinLoc is documented in general at http://alomax.free.fr/nlloc/ and the specific format for the catalog files is documented at http://alomax.free.fr/nlloc/soft7.00/formats.html#_location_hypphs_. The data files were generated as part of a project called Understanding the Spatio-Temporal Characteristics of Earthquakes at Axial Seamount Late in an Eruptive Cycle, and funding for this work was provided by NSF award OCE-1536219.

本数据集包含由轴向海山地震重新定位所得的地震目录，该地震目录覆盖了2015年1月至2017年2月期间的数据。通过联合反演地震P波和S波的到达时间，获取了三维P波和S波速度模型，从而确定了地震的震源位置和速度结构。到达时间数据源自轴向海山海底观测网络。该地震目录的研究成果由Baillard和Wilcock（2019年）所著文献详述。目录分为两个文件，其中一个仅包含震中，另一个则包含震中和相位信息。两个文件均采用NonLinLoc格式。NonLinLoc格式在http://alomax.free.fr/nlloc/有详细介绍，而目录文件的特定格式则可在http://alomax.free.fr/nlloc/soft7.00/formats.html#_location_hypphs_找到。数据文件作为理解轴向海山在喷发周期后期地震时空特性的项目的一部分生成，该项目得到了美国国家科学基金会（NSF）资助编号OCE-1536219的资助。