Resolving vertical tectonics in the San Francisco Bay Area from permanent scatterer InSAR and GPS analysis

Abstract

Research Article| March 01, 2006 Resolving vertical tectonics in the San Francisco Bay Area from permanent scatterer InSAR and GPS analysis Roland Bürgmann; Roland Bürgmann 1Department of Earth and Planetary Science and Berkeley Seismological Laboratory, University of California, Berkeley, California 94720, USA Search for other works by this author on: GSW Google Scholar George Hilley; George Hilley 2Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305, USA Search for other works by this author on: GSW Google Scholar Alessandro Ferretti; Alessandro Ferretti 3Tele-Rilevamento Europa, Via Vittoria Colonna 7, 20149 Milan, Italy Search for other works by this author on: GSW Google Scholar Fabrizio Novali Fabrizio Novali 3Tele-Rilevamento Europa, Via Vittoria Colonna 7, 20149 Milan, Italy Search for other works by this author on: GSW Google Scholar Geology (2006) 34 (3): 221–224. https://doi.org/10.1130/G22064.1 Article history received: 24 Jul 2005 rev-recd: 16 Nov 2005 accepted: 18 Nov 2005 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Roland Bürgmann, George Hilley, Alessandro Ferretti, Fabrizio Novali; Resolving vertical tectonics in the San Francisco Bay Area from permanent scatterer InSAR and GPS analysis. Geology 2006;; 34 (3): 221–224. doi: https://doi.org/10.1130/G22064.1 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 Using a combination of GPS-measured horizontal velocities of 200 sites and 115,487 range-change rates determined with the permanent scatterer interferometric synthetic aperture radar (InSAR) method in the San Francisco Bay Area, we resolve vertical motions in the region at sub-mm/yr precision. The highest displacement rates are due to nontectonic processes, such as active landslides, subsidence and rebound over aquifers, and rapid settling of unconsolidated sediments along the bay margins. Residual displacement rates are determined by removing the contribution of the GPS-derived horizontal velocity field from the InSAR range-change rates. To isolate vertical tectonic rates, we use only those InSAR measurements made on material that was not Quaternary substrate, which is susceptible to nontectonic and seasonally varying ground motions. The InSAR residuals indicate significant uplift over the southern foothills of the active Mount Diablo anticlinorium, the Mission Hills stepover region of the Hayward and Calaveras faults, and the central and southern Santa Cruz Mountains located along a restraining bend of the San Andreas fault. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.