Open Access2012 Haida Gwaii Quake: Insight Into Cascadia's Subduction Extent
Author(s) -
Szeliga Walter
Publication year - 2013
Publication title -
eos, transactions american geophysical union
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.316
H-Index - 86
eISSN - 2324-9250
pISSN - 0096-3941
DOI - 10.1002/2013eo090001
Subject(s) - geology , subduction , seismology , quake (natural phenomenon) , north american plate , pacific plate , seismic hazard , plate tectonics , tectonics
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.