2012 Haida Gwaii Quake: Insight Into Cascadia's Subduction Extent. (26th February 2013)

• Record Type: Journal Article
• Authors: Szeliga, Walter
• Is Part Of: Eos. Volume 94:Number 9(2013)
• Page Start: 85
• Page End: 86
• Publication Date: 2013-02-26
• Subjects: interplate seismicity -- Cascadia -- hazards; Geophysics -- Periodicals; 551
• DOI: 10.1002/2013EO090001
• Languages: English
• ISSNs: 0096-3941

Abstract

Abstract : The limits of Cascadia were first defined to contain nearly the entire margin of the Pacific Northwest, from Cape Mendocino through the Alaska Panhandle [ Schuchert, 1910; Schuchert and Barrell, 1914]. Since that time, the boundary of Cascadia has shrunk to become essentially synonymous with the region where the Juan de Fuca plate subducts beneath the North American plate. As a consequence, seismic hazard assessments in the Pacific Northwest have conventionally focused on the potential for large megathrust earthquakes along the interface of the Juan de Fuca and North American plates.