Coastline uplift in Oregon and Washington and the nature of Cascadia subduction-zone tectonics

Research Article| February 01, 1988 Coastline uplift in Oregon and Washington and the nature of Cascadia subduction-zone tectonics Donald O. West; Donald O. West 1Golder Associates, 4104 148th Avenue NE, Redmond, Washington 98052 Search for other works by this author on: GSW Google Scholar Dennis R. McCrumb Dennis R. McCrumb 1Golder Associates, 4104 148th Avenue NE, Redmond, Washington 98052 Search for other works by this author on: GSW Google Scholar Author and Article Information Donald O. West 1Golder Associates, 4104 148th Avenue NE, Redmond, Washington 98052 Dennis R. McCrumb 1Golder Associates, 4104 148th Avenue NE, Redmond, Washington 98052 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1988) 16 (2): 169–172. https://doi.org/10.1130/0091-7613(1988)016<0169:CUIOAW>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 Email Tools Icon Tools Get Permissions Search Site Citation Donald O. West, Dennis R. McCrumb; Coastline uplift in Oregon and Washington and the nature of Cascadia subduction-zone tectonics. Geology 1988;; 16 (2): 169–172. doi: https://doi.org/10.1130/0091-7613(1988)016<0169:CUIOAW>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 Coastline deformation resulting from great shallow thrust earthquakes can provide information concerning the paleoseismicity of a subduction zone and thus information on the nature of potential seismicity. The Cascadia subduction zone is different from most other subduction zones in that it has been quiescent with respect to great earthquakes for at least the past 200 yr. The Washington-Oregon coastline also differs from most other coastlines associated with subduction zones in its lack of uplifted Holocene shoreline features and low overall rate of late Quaternary uplift (0.2-0.6 mm/yr). The uplift differences suggest that repeated great earthquakes have not occurred along the Cascadia subduction zone at least during the late Holocene. Alternatively, if the plate interface has generated earthquakes, the differences may be explained by longer recurrence intervals for great earthquakes, smaller magnitude earthquakes, or a mechanism that does not result in uplift of the coastline where expected. 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.