1887
Volume 73, Issue 6
  • E-ISSN: 1365-2478

Abstract

ABSTRACT

Velocity models are essential for accurately locating the rapidly increasing seismicity in Texas. The region's limited monitoring infrastructure and extensive sedimentary basins underscore the need for developing both P‐ and S‐wave models, especially for precise depth estimation of seismic events. This study utilizes seismic interferometry and surface wave inversion techniques, along with receiver functions, to construct a three‐dimensional velocity model for Western, Central and Southern Texas. Our results indicate that the integration of receiver functions significantly improves the stability of the surface wave inversion process. The resulting inverted model aligns well with known geological structures, revealing lower S‐wave velocities in sedimentary basins and higher velocities in areas with bedrock exposure. Notably, the velocity contrasts between the sedimentary basins and bedrock can reach up to 30% at equivalent depths. Furthermore, the S‐wave velocities derived from our model are considerably lower than those reported in previous research, suggesting that the use of this revised S‐wave model may require a reevaluation of the depths at which seismic events are located.

© 2025 European Association of Geoscientists & Engineers. © 2025 European Association of Geoscientists & Engineers.
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2025-07-08
2026-02-15

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/content/journals/10.1111/1365-2478.70035
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S‐Wave Velocity Model of Texas Based On Joint Inversion of Interferometry and P‐Wave Receiver Functions
Geophysical Prospecting 73, e70035 (2025); https://doi.org/10.1111/1365-2478.70035
/content/journals/10.1111/1365-2478.70035
/content/journals/10.1111/1365-2478.70035
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  • Article Type: Review Article
Keyword(s): seismic interferometry; joint inversion; shear wave velocity; surface wave; three‐dimensional (3D)

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