Short‐period surface‐wave tomography in the continental United States—A resource for research

Seismological Research Letters
By: , and 

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Abstract

 grid for the four independent tomographic inversions (Love and Rayleigh and phase and group velocity). One reason for trying to obtain short‐period dispersion was to have a data set capable of constraining upper crust velocity models for use in determining regional moment tensors. The benefit of focusing on short‐period dispersion is apparent in the tomography maps—shallow geologic structures such as the Mid‐Continent Rift, and the Michigan, Illinois, Anadarko, Arkoma, and Appalachian basins are imaged. In our processing, we noted that the phase velocities were more robustly determined than the group velocities. We also noted that the inability to obtain dispersion at short periods shows distinct regional patterns that may be related to the local upper crust structure.

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Publication type Article
Publication Subtype Journal Article
Title Short‐period surface‐wave tomography in the continental United States—A resource for research
Series title Seismological Research Letters
DOI 10.1785/0220200462
Edition Online First
Year Published 2021
Language English
Publisher Seismological Society of America
Contributing office(s) Geologic Hazards Science Center
Country United States
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