Ridgecrest, CA seismic velocity models

Published: 09-04-2021| Version 3 | DOI: 10.17632/gv33tgvt5f.3
Malcolm White,
Hongjian Fang,
Rufus Catchings,
Mark Goldman,
Jamison Steidl,
Yehuda Ben-Zion


This data set contains models of seismic (compressional- and shear-wave) velocity structure for the region surrounding the 2019 Ridgecrest, CA earthquake pair. These models were derived via traveltime tomography with the aftershock catalog that accompanies this data set (doi: 10.17632/x8v5wkbj6r.1). The models are discretized on a regular grid in geographical coordinates and shared in a single CSV file. The first three columns indicate the spatial position of the model parameters, the second set of three columns indicate the compressional- (or P-) and shear- (or S-) wave velocities (Vp and Vs , respectively) in kilometers per second and their ratio (Vp/Vs), and the last three columns indicate the uncertainties associated with each of these values. White_et_al_2021__Rigecrest_2019_velocity.csv fields ============================================ - latitude: Node latitude in degrees - longitude: Node longitude in degrees - depth: Node depth (below sea level) in kilometers - Vp: P-wave velocity in kilometers per second - Vs: S-wave velocity in kilometers per second - VpVs: Ratio of P- and S-wave velocities (unitless) - sigma_Vp: P-wave velocity uncertainty in kilometers per second - sigma_Vs: S-wave velocity uncertainty in kilometers per second - sigma_VpVs: Vp/Vs ratio uncertainty (unitless)