Methane Plume Emissions Associated With Puget Sound Faults in the Cascadia Forearc
Methane gas plumes have been discovered to issue from the seafloor in the Puget Sound estuary. These gas emission sites are co‐located over traces of three major fault zones that fracture the entire forearc crust of the Cascadia Subduction Zone ...
H. Paul Johnson +8 more
doaj +1 more source
IODP Expedition 328: Early Results of Cascadia Subduction Zone ACORK Observatory [PDF]
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 +2 more
doaj +3 more sources
Bidirectional Loading of the Subduction Interface: Evidence From the Kinematics of Slow Slip Events
Subduction zones host some of Earth's most damaging natural hazards, including megathrust earthquakes and earthquake‐induced tsunamis. A major control on the initiation and rupture characteristics of subduction megathrust earthquakes is how the coupled ...
K. A. McKenzie +2 more
doaj +1 more source
Commentary: The Role of Geodetic Algorithms for Earthquake Early Warning in Cascadia
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 +3 more
doaj +1 more source
(I) A Coupled Geochemical and Geodynamical Approach to Subduction Zone Modeling and (II) Development of Color in Greenish Quartz [PDF]
(I) We couple a petrological model with a 2D thermal and variable viscosity flow model to describe and compare fundamental processes occurring within subduction zones.
Hebert, Laura Baker
core +1 more source
A Long‐Term View of Episodic Tremor and Slip in Cascadia
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
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 +2 more
doaj +1 more source
Earthquake cycle modeling of the Cascadia subduction zone
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
Thomas Ben Thompson, Brendan J Meade
core +1 more source
Along-strike changes in ETS behavior near the slab edge of Southern Cascadia
Episodic tremor and slip (ETS) is well-documented along the entire length of the Cascadia subduction zone. We explore how the occurrence of ETS varies at the southernmost edge of the subduction zone, where geometric complexity and a slab window likely ...
Carolyn Nuyen, David Schmidt
doaj +1 more source
Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)
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 +5 more
wiley +1 more source

