Results 41 to 50 of about 390 (174)

IODP Expedition 328: Early Results of Cascadia Subduction Zone ACORK Observatory [PDF]

Scientific Drilling, 2012
Integrated Ocean Drilling Program (IODP) Expedition 328 was devoted to the installation of an "Advanced CORK" (Circulation Obviation Retrofit Kit) in the Cascadia subduction zone accretionary prism to observe the physical state and properties of the ...
E. Davis, M. Heesemann, the IODP Expedition 328 Scientists and Engineers   +2 more
doaj   +3 more sources

Commentary: The Role of Geodetic Algorithms for Earthquake Early Warning in Cascadia

Geophysical Research Letters, 2021
The ShakeAlert earthquake early warning (EEW) system issues public alerts in California and will soon extend to Oregon and Washington. The Cascadia subduction zone presents significant new challenges and opportunities for EEW.
Jeffrey J. McGuire, Sarah E. Minson, Jessica R. Murray, Benjamin A. Brooks   +3 more
doaj   +1 more source

A Long‐Term View of Episodic Tremor and Slip in Cascadia

Geophysical Research Letters, 2020
Episodic Tremor and Slip, or ETS, is a well‐recognized phenomenon in the Cascadia subduction zone. Constraining the precise location of geodetically measured slip during ETS is important for clarifying the relationship between slip and tremor during ETS,
Noel M. Bartlow
doaj   +1 more source

Inner forearc faults in northern Cascadia do not accommodate elastic strain driven by the megathrust seismic cycle

Seismica
We employ numerical models to explore the connection between subduction zone coupling or megathrust rupture and upper plate faults in the northern Cascadia forearc.
Nicolas Harrichhausen, Kristin D Morell, Christine Regalla   +2 more
doaj   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki, Michael E. Jackson, Glen S. Mattioli, David J. Mencin, Karl Feaux, Donna J. Charlevoix   +5 more
wiley   +1 more source

New constraints on subduction zone structure in northern Cascadia [PDF]

Geophysical Journal International, 2005
SUMMARY A detailed passive seismic experiment was carried out across southwestern British Columbia and northwestern Washington to investigate the structure of the subducting Juan de Fuca plate and mantle wedge in Cascadia and its relation to intraslab seismicity. As part of the POLARIS project, 31 three-component broad-band stations were deployed in an
T. Nicholson, M. Bostock, J. F. Cassidy
openaire   +1 more source

Multi‐Hazard Shaking‐Tsunami Fatality Risk Estimation for Coastal Communities

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2618-2633, September 2026.
ABSTRACT This study develops a multi‐hazard fatality risk model for a coastal community (Tofino) on Vancouver Island, Canada, subjected to earthquake‐tsunami threats from the Cascadia subduction megathrust events. The model incorporates variable population distributions and uncertain fatality rate models, in addition to other key model components, such
Katsuichiro Goda
wiley   +1 more source

Earthquake cycle modeling of the Cascadia subduction zone

, 2019
The Cascadia subduction zone hosts great $\mathrm{M}_\mathrm{W} > 8.5$ earthquakes, but studying these events is hindered by our short observational record. Earthquake cycle simulation provides an alternative window into the behavior of the subduction zone.
Thompson, Thomas, Meade, Brendan
openaire   +3 more sources

No evidence for an active margin-spanning megasplay fault at the Cascadia Subduction Zone

Seismica
It has been previously proposed that a megasplay fault within the Cascadia accretionary wedge, spanning from offshore Vancouver Island to Oregon, has the potential to slip during a future Cascadia subduction zone earthquake.
Madeleine C Lucas, Anna M Ledeczi, Harold J Tobin, Suzanne M Carbotte, Janet T Watt, Shuoshuo Han, Brian Boston, Danqi Jiang   +7 more
doaj   +1 more source

Cascadia Slow Earthquake Behaviors Modulated by Tectonic and Environmental Forcings

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Slow earthquakes, including episodic tremor and slip (ETS), are highly sensitive to small stress perturbations, yet their links to tectonic and non‐tectonic forcings remain unclear. Previous studies suggest that annual hydrological cycle dominates the tremor seasonal behavior in northern Cascadia.
Qingjun Meng, Zhen Liu, Surendra Adhikari, Yingdi Luo   +3 more
wiley   +1 more source