Results 71 to 80 of about 5,667 (223)
Horizontal compressive stress regime on the northern Cascadia margin inferred from borehole breakouts [PDF]
, 2016 During Integrated Ocean Drilling Program Expedition 311 five boreholes were drilled across the accretionary prism of the northern Cascadia subduction zone.
Goldberg, D. +4 more
core +1 more source
A possible “window of escape” in the southern Cascadia subduction zone [PDF]
Geology, 2007 Understanding the forces and factors that are responsible for deforming the conti nental lithosphere remains a fundamental issue in geo physics. Deformation in continental plate boundary zones occurs over length scales of hundreds to thousands of kilometers, in contrast to oceanic plate boundaries,
openaire +1 more source
Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.Abstract A M5.9 earthquake occurred on 29 March 2024, offshore near the Strofades Islands, in the western Hellenic Subduction System. Here we present high‐precision earthquake locations and focal mechanisms that suggest the rupture of a NNE‐SSW striking, left‐lateral strike‐slip fault.
G. M. Bocchini +8 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, 2020 Recent seismic results from the Cascadia Initiative indicate that heterogeneity in the oceanic asthenosphere affects subduction dynamics. Accurate characterization of the oceanic upper mantle is thus necessary to fully understand subduction processes ...
M. Bodmer +4 more
doaj +1 more source
Earthquake Spectra, Volume 42, Issue 2, May 2026.This article presents a framework for performing a regional assessment of the accessibility of emergency healthcare facilities after a major earthquake. Accessibility is assessed by applying the enhanced two‐step floating catchment area method to a regional road network, implemented in ArcGIS.
Kiranjot Kaur +2 more
wiley +1 more source
SeismicaBecause splay faults branch at a steep dip angle from the plate-boundary décollement in an accretionary wedge, their coseismic displacement can potentially result in larger tsunamis with distinct characteristics compared to megathrust-only fault ruptures,
Anna Ledeczi +4 more
doaj +1 more source
Earthquake Spectra, Volume 42, Issue 2, May 2026.We perform linear mixed‐effects analyses with a ground‐motion dataset to evaluate how well ground‐motion models (GMMs) fit active crustal, subduction interface, and subduction intraslab earthquakes in Puerto Rico and the US Virgin Islands. Most of the GMMs reproduce the spatial variation in peak ground motions with earthquake magnitude and rupture ...
Brad T. Aagaard +2 more
wiley +1 more source
Poloidal‐ and Toroidal‐Mode Mantle Flows Underneath the Cascadia Subduction Zone
Geophysical Research Letters, 2020 Several hypotheses have been proposed to explain intriguing circular shear wave splitting patterns in the Pacific Northwest, invoking either 2‐D entrained flows or 3‐D return flows. Here, we present some hitherto unidentified, depth‐dependent anisotropic
Hejun Zhu +4 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2022 We employ an automatic earthquake detection algorithm to seismic waveforms recorded between the years 2000 and 2020 in southwest British Columbia. 32,121 events which possess at least three paired P‐ and S‐wave arrival times are located, compared to 21 ...
Reid J. Merrill +4 more
doaj +1 more source
Geometry and seismic properties of the subducting Cocos plate in central Mexico [PDF]
, 2010 The geometry and properties of the interface of the Cocos plate beneath central Mexico are determined from the receiver functions (RFs) utilizing data from the Meso America Subduction Experiment (MASE).
Clayton, R. W., Jackson, J. M., Kim, Y.
core +1 more source