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Quaternary Extensional Growth Folding beneath Reno, Nevada, Imaged by Urban Seismic Profiling

2013; Seismological Society of America; Volume: 103; Issue: 5 Linguagem: Inglês

10.1785/0120120311

1943-3573

William J. Stephenson, Roxanna Frary, J. N. Louie, J. K. Odum,

Seismology and Earthquake Studies

Brief Report| October 01, 2013 Quaternary Extensional Growth Folding beneath Reno, Nevada, Imaged by Urban Seismic Profiling W. J. Stephenson; W. J. Stephenson U.S. Geological Survey, 1711 Illinois Street, Golden, Colorado 80401wstephens@usgs.gov Search for other works by this author on: GSW Google Scholar R. N. Frary; R. N. Frary Noble Energy Inc., 100 Glenborough Dr #100, Houston, Texas 77067 Search for other works by this author on: GSW Google Scholar J. N. Louie; J. N. Louie Nevada Seismological Laboratory, Department of Geological Sciences and Engineering, Mackay School of Earth Sciences and Engineering, College of Science, University of Nevada, Reno MS 0174, 217 Laxalt Mineral Engineering Bldg., 1664 N. Virginia Street, Reno, Nevada 89557‐0141 Search for other works by this author on: GSW Google Scholar J. K. Odum J. K. Odum U.S. Geological Survey, 1711 Illinois Street, Golden, Colorado 80401 Search for other works by this author on: GSW Google Scholar Bulletin of the Seismological Society of America (2013) 103 (5): 2921–2927. https://doi.org/10.1785/0120120311 Article history first online: 14 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation W. J. Stephenson, R. N. Frary, J. N. Louie, J. K. Odum; Quaternary Extensional Growth Folding beneath Reno, Nevada, Imaged by Urban Seismic Profiling. Bulletin of the Seismological Society of America 2013;; 103 (5): 2921–2927. doi: https://doi.org/10.1785/0120120311 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract We characterize shallow subsurface faulting and basin structure along a transect through heavily urbanized Reno, Nevada, with high‐resolution seismic reflection imaging. The 6.8 km of P‐wave data image the subsurface to approximately 800 m depth and delineate two subbasins and basin uplift that are consistent with structure previously inferred from gravity modeling in this region of the northern Walker Lane. We interpret two primary faults that bound the uplift and deform Quaternary deposits. The dip of Quaternary and Tertiary strata in the western subbasin increases with greater depth to the east, suggesting recurrent fault motion across the westernmost of these faults. Deformation in the Quaternary section of the western subbasin is likely evidence of extensional growth folding at the edge of the Truckee River through Reno. This deformation is north of, and on trend with, previously mapped Quaternary fault strands of the Mt. Rose fault zone. In addition to corroborating the existence of previously inferred intrabasin structure, these data provide evidence for an active extensional Quaternary fault at a previously unknown location within the Truckee Meadows basin that furthers our understanding of both the seismotectonic framework and earthquake hazards in this urbanized region. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.