Results 191 to 200 of about 12,078 (235)

The Northern Terminus of Cascadia Subduction

Journal of Geophysical Research: Solid Earth, 2020
AbstractThe Juan de Fuca (JDF) plate system is pivoting and breaking apart as a result of resistance to subduction. At the northern end, the Explorer (EXP) plate moves independently of the JDF plate along the Nootka Fault Zone (NFZ), which forms an unstable triple junction with the JDF ridge and the Sovanco Fracture Zone.
G. Savard, M. G. Bostock, J. Hutchinson, H. Kao, N. I. Christensen, S. M. Peacock   +5 more
openaire   +1 more source

An Earthquake Nest in Cascadia

Bulletin of the Seismological Society of America, 2019
AbstractWe investigate an isolated cluster of temporally persistent, intraslab earthquakes (ML<3.2) at >60  km depth below the Georgia Strait in southern British Columbia that is unique in Cascadia and meets the criteria for identification as an earthquake nest.
Reid Merrill, Michael Bostock
openaire   +1 more source

Earthquake Hazards on the Cascadia Subduction Zone

Science, 1987
Large subduction earthquakes on the Cascadia subduction zone pose a potential seismic hazard. Very young oceanic lithosphere (10 million years old) is being subducted beneath North America at a rate of approximately 4 centimeters per year.
Heaton, Thomas H., Hartzell, Stephen H.
openaire   +3 more sources

The Productivity of Cascadia Aftershock Sequences

Bulletin of the Seismological Society of America, 2021
ABSTRACTThis study addresses questions about the productivity of Cascadia mainshock–aftershock sequences using earthquake catalogs produced by the Geological Survey of Canada and the Pacific Northwest Seismic Network. Questions concern the likelihood that future moderate to large intermediate depth intraslab earthquakes in Cascadia would have as few ...
Joan Gomberg, Paul Bodin
openaire   +1 more source

Intraslab Earthquakes: Dehydration of the Cascadia Slab

Science, 2003
We simultaneously invert travel times of refracted and wide-angle reflected waves for three-dimensional compressional-wave velocity structure, earthquake locations, and reflector geometry in northwest Washington state. The reflector, interpreted to be the crust-mantle boundary (Moho) of the subducting Juan de Fuca plate, separates intraslab earthquakes
Leiph A, Preston, Kenneth C, Creager, Robert S, Crosson, Thomas M, Brocher, Anne M, Trehu   +4 more
openaire   +2 more sources

Decolonizing Cascadia?

2015
ACME: An International Journal for Critical Geographies, Vol. 13 No.
openaire   +1 more source

The next cascadia slab model

2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Bloch, W., Bostock, M., Audet, P.
openaire   +2 more sources

Deep-sea sedimentation and sediment-fauna interaction in Cascadia Channel and on Cascadia Abyssal Plain

Deep Sea Research and Oceanographic Abstracts, 1969
Abstract The transport of sediments from shallow water by turbidity currents and their deposition within Cascadia Channel in the northeast Pacific Ocean have created a unique environment. Thick organic-rich turbidity current deposits of postglacial age in Cascadia Channel contrast markedly to the thin, less rich, hemipelagic clays overlying clean ...
G.B. Griggs, A.G. Carey, L.D. Kulm
openaire   +1 more source

Transborder Cascadia: Opportunities and obstacles

Journal of Borderlands Studies, 2004
The issue of the continuing significance of borders within North America provides a good basis for analysis of changes in-and our understanding of-the nature and impact of national boundaries early in the 21st century. The recent literature on borders runs a gamut from the emergence of "a borderless world" and the end of the nation state (Ohmae 1990/1,
openaire   +1 more source

The Siren Call of Cascadia

Elements, 2022
openaire   +1 more source