2026-09-20T05:59:22Zhttps://digital.lib.washington.edu/server/oai/request

oai:digital.lib.washington.edu:1773/235832025-01-07T20:58:13Zcom_1773_4888col_1773_4905

Pratt, Thomas L Polivka, Peter Michael 2013-07-25T17:54:21Z 2015-12-14T17:55:56Z 2013-07-25 2013 Polivka_washington_0250O_11551.pdf http://hdl.handle.net/1773/23583 Thesis (Master's)--University of Washington, 2013 GPS strain and recent neotectonic studies in northwest Washington and southwest British Columbia indicate long term north-south shortening of the Cascadia forearc extends north of recognized active faults. This study reviews seismic reflection profiles from the SHIPS 1998 and 2002 experiments in conjunction with industry data to identify active geologic structures capable of accommodating this unaccounted strain. Here a new active northeast striking thrust system in southern Strait of Georgia is identified, the fault ruptured during the 1997 earthquake near Gabriola Island and Vancouver B.C. is imaged, and the first subsurface images of the Sandy Point Fault are presented. application/pdf en_US Copyright is held by the individual authors. 1997; fault; hazard; Vancouver Geology Geophysics Geological engineering civil engineering Tectonics of the Georgia Basin, northwest Washington State, USA, and southwest British Columbia, Canada Thesis Delay release for 2 years -- then make Open Access open.access