Three-dimensional P- and S-wave velocity models for Axial Seamount from a joint inversion of earthquake arrival times for velocity and hypocentral parameters

This data set consists of tomographic models of P-wave and S-wave seismic velocities at Axial Seamount obtained by a joint inversion for earthquake locations and velocity structure of input data comprising P-wave and S-wave arrival times for 3894 earthquakes recorded by the Ocean Observatories Initiative Cabled Array at Axial Seamount. The study that obtained these models is described in Baillard and Wilcock (2019). The models are presented in the NonLinLoc format. NonLinLoc is documented in general at http://alomax.free.fr/nlloc/ and the specific format for grids is documented at http://alomax.free.fr/nlloc/soft7.00/formats.html#_grid_. 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.