Data Services Products: EMC-SLC-Vs10km-2022 Shear velocity model for Salt Lake Valley, UT, USA

Summary

A shear velocity model for Salt Lake Valley, UT from the Rayleigh wave ellipticity and phase velocity measurement from Mw 6.5 Idaho earthquake 2020 and earthquake coda cross correlations.

Description

Name SLC-Vs10km-2022
Title Shear velocity model for Salt Lake Valley, UT, USA
Type 3-D Tomography Earth Model
Sub Type Absolute Vs (km/s)
Year 2022
Data Revision r0.0 (revision history)
 
Short Description   Rayleigh wave ellipticity and phase velocity measurement from Mw 6.5 Idaho earthquake 2020 and earthquake coda cross correlations were used to estimate Vs in Salt Lake Valley, Vp and Rho used for Markov chain Monte Carlo inversion were calculated from Vs using empirical relationship from Brocher 2005.
 
Authors: Qicheng Zeng, Department of Geology and Geophysics, University of Utah

Fan-Chi Lin, Department of Geology and Geophysics, University of Utah

Amir A. Allam, Department of Geology and Geophysics, University of Utah

Corresponding Author: Qicheng Zeng, Qicheng.Zeng@utah.edu
 
Reference Model Community Velocity Model for Salt Lake Valley
 
Model Download SLC-Vs10km-2022.r0.0.nc (see metadata) in the Polar Stereographic Projection and in netCDF 3 Classic format.
 
Depth Coverage 0-10 km
 
Area latitude: 40.4° to 40.9°; longitude: -112.5° to -111.6°. with 0.005° grid)
 
Data Set Description Rayleigh wave ellipticity and phase velocity measurement from Mw 6.5 Idaho earthquake 2020 and earthquake coda cross correlations.
 
 

The inverted shear velocity model at 0.5 km depth
Zeng et al., 2022 (a) The inverted shear velocity (Vs) model at 0.5 km depth. Red lines A-A’ and B-B’ show the location of two cross-sections in (b) and©. (b) The inverted Vs model along cross-section A-A’ for depth between 0 to 3 km. Relative elevation is shown on top of the cross-section with same scale as depth. Approximate locations of two opposite dipping antithetic normal faults WVFZ and WSF are identified by gray lines. (c) Same as (b) but for cross-section B-B’. (d)-(f) Same as (a)-(c) but from the CVM.

Citations and DOIs

To cite the original work behind this Earth model:

  • Zeng, Q., Lin, F.-C., and Allam, A. A. (2022). 3D Shear Wave Velocity Model of Salt Lake Valley via Rayleigh Wave Ellipticity across a Temporary Geophone Array, The Seismic Record. 2(2), 127–136, https://doi.org/10.1785/0320220016.

To cite IRIS DMC Data Products effort:

  • Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern, and R. Aster (2012), Data Products at the IRIS DMC: Stepping Stones for Research and Other Applications, Seismological Research Letters, 83(5), 846–854, https://doi.org/10.1785/0220120032.

DOI for this EMC webpage: https://doi.org/10.17611/dp/emc.2022.slcvss10km-2022.1

References

  • Brocher, T. M. (2005). Empirical relations between elastic wavespeeds and density in the Earth’s crust. Bulletin of the seismological Society of America, 95(6), 2081-2092.

Credits

  • r0.0 model provided by Qicheng Zeng.

Revision History

revision r0.0: uploaded June 27, 2022.

Timeline

2022-06-27
online

Categories

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