Late Quaternary uplift and earthquake potential of the San Joaquin Hills, southern Los Angeles basin, California

Research Article| November 01, 1999 Late Quaternary uplift and earthquake potential of the San Joaquin Hills, southern Los Angeles basin, California Lisa B. Grant; Lisa B. Grant 1Department of Environmental Analysis, University of California, Irvine, California 92697-7070, USA Search for other works by this author on: GSW Google Scholar Karl J. Mueller; Karl J. Mueller 2Department of Geological Sciences, University of Colorado, Boulder, Colorado 80309, USA Search for other works by this author on: GSW Google Scholar Eldon M. Gath; Eldon M. Gath 1Department of Environmental Analysis, University of California, Irvine, California 92697-7070, USA Search for other works by this author on: GSW Google Scholar Hai Cheng; Hai Cheng 3Department of Geology and Geophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA Search for other works by this author on: GSW Google Scholar R. Lawrence Edwards; R. Lawrence Edwards 3Department of Geology and Geophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA Search for other works by this author on: GSW Google Scholar Rosalind Munro; Rosalind Munro 4Leighton and Associates, 17781 Cowan, Irvine, California 92614, USA Search for other works by this author on: GSW Google Scholar George L. Kennedy George L. Kennedy 5Department of Geological Sciences, San Diego State University, San Diego, California 92182-1020, USA Search for other works by this author on: GSW Google Scholar Geology (1999) 27 (11): 1031–1034. https://doi.org/10.1130/0091-7613(1999)027<1031:LQUAEP>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Lisa B. Grant, Karl J. Mueller, Eldon M. Gath, Hai Cheng, R. Lawrence Edwards, Rosalind Munro, George L. Kennedy; Late Quaternary uplift and earthquake potential of the San Joaquin Hills, southern Los Angeles basin, California. Geology 1999;; 27 (11): 1031–1034. doi: https://doi.org/10.1130/0091-7613(1999)027<1031:LQUAEP>2.3.CO;2 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 SocietyGeology Search Advanced Search Abstract Analysis of emergent marine terraces in the San Joaquin Hills, California, and 230Th dating of solitary corals from the lowest terraces reveal that the San Joaquin Hills have risen at a rate of 0.21–0.27 m/k.y. during the past 122 k.y. Movement on a blind thrust fault in the southern Los Angeles basin has uplifted the San Joaquin Hills and has the potential to generate an Mw 7.3 earthquake within this densely populated area. Our structural modeling suggests that the fault dips to the southwest and slips at ∼0.42–0.79 m/k.y., yielding an estimated minimum average recurrence interval of ∼1650–3100 yr for moderate-sized earthquakes. Recognition of this blind thrust extends the known area of active blind thrusts and fault-related folding southward from Los Angeles into coastal Orange County. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.