Relationship of basin structure and bedrock lithology to faulting in the 2019 Ridgecrest earthquake region, California, from gravity and aeromagnetic data

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Abstract

We investigate patterns of cumulative offsets on the faults that ruptured in 2019 and along the Garlock Fault in the Ridgecrest region, California using recently published gravity and aeromagnetic data. We also examine the relationship of basin structure and bedrock structure to the 2019 M7.1 Ridgecrest earthquake ruptures (Fig. 1A), which were primarily along a dextral northwest-striking fault system, and along a sinistral northeast-striking fault, which ruptured hours earlier with a M6.4 event. 

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Publication type Conference Paper
Publication Subtype Conference Paper
Title Relationship of basin structure and bedrock lithology to faulting in the 2019 Ridgecrest earthquake region, California, from gravity and aeromagnetic data
Year Published 2025
Language English
Publisher Friends of the Pleistocene
Contributing office(s) Geology, Minerals, Energy, and Geophysics Science Center
Description 4 p.
Larger Work Type Book
Larger Work Subtype Conference publication
Larger Work Title Friends of the Pleistocene Pacific Cell annual meeting fieldtrip guidebook
First page 166
Last page 169
Conference Title 2025 Pacific Cell Friends of the Pleistocene Field Conference
Conference Location Ridgecrest, CA
Conference Date October 24-26, 2025
Country United States
State California
Additional publication details