Results 51 to 60 of about 5,667 (223)

Depth-varying rupture properties of subduction zone megathrust faults [PDF]

, 2012
Subduction zone plate boundary megathrust faults accommodate relative plate motions with spatially varying sliding behavior. The 2004 Sumatra-Andaman (M_w 9.2), 2010 Chile (Mw 8.8), and 2011 Tohoku (M_w 9.0) great earthquakes had similar depth variations
Ammon, Charles J., Hutko, Alexander R., Kanamori, Hiroo, Koper, Keith D., Lay, Thorne, Rushing, Teresa M., Ye, Lingling, Yue, Han   +7 more
core   +1 more source

Tectonic synthesis of the Olympic Mountains segment of the Cascadia wedge, using two-dimensional thermal and kinematic modeling of thermochronological ages [PDF]

, 2001
A fully coupled two-dimensional kinematic and thermal model of a steady state accretionary wedge, constrained by an extensive data set of fission track and (U-Th)/He ages for apatite and zircon, is here used to investigate the development of the Olympic ...
Batt, Geoffrey E., Brandon, Mark T., Farley, Kenneth A., Roden-Tice, Mary   +3 more
core   +2 more sources

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

Spontaneous and Triggered Aseismic Deformation Transients in a Subduction Fault Model [PDF]

, 2011
Aseismic deformation transients can emerge as a natural outcome of the rate and state friction processes revealed in laboratory fault-sliding experiments.
Liu, Yajing, Rice, James R.
core   +1 more source

Deep lithospheric structures along the southern central Chile Margin from wide-angle P-wave modellilng [PDF]

, 2009
Crustal- and upper-mantle structures of the subduction zone in south central Chile, between 42 degrees S and 46 degrees S, are determined from seismic wide-angle reflection and refraction data, using the seismic ray tracing method to calculate minimum ...
A. Krabbenhoeft, Angermann, Bangs, Barrientos, Behrmann, Behrmann, Bialas, Bourgois, Brasse, Bry, C. J. Petersen, C. Papenberg, Cande, Cifuentes, Cisternas, Contreras-Reyes, Contreras-Reyes, Contreras-Reyes, Currie, DeMets, E. Contreras-Reyes, E. R. Flueh, Farr, Fischer, Flueh, Flueh, Gonzalez, Grevemeyer, Grevemeyer, Grevemeyer, Gross, Haberland, Hackney, Heesemann, Hyndman, I. Grevemeyer, Ivandic, Kapinos, Kirby, Krawczyk, Lange, Lefeldt, M. Scherwath, Melnick, Melnick, Mordohovich, Oleskevich, R. W. Weinrebe, Ranero, Ranero, Ranero, Ranero, Rietbrock, Roeser, Scherwath, Scholl, Song, Stein, Takahashi, Tassara, Taylor, Tebbens, Thierer, Tilmann, Voelker, Voelker, von Huene, Wessel, White, Yanez, Zelt, Zelt, Zelt, Zelt   +73 more
core   +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

Along-strike changes in ETS behavior near the slab edge of Southern Cascadia

Seismica
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

Upward delamination of Cascadia Basin sediment infill with landward frontal accretion thrusting caused by rapid glacial age material flux [PDF]

, 2004
The Cascadia convergent margin is a first-order research target to study the impact of rapid sedimentation processes on the mechanics of frontal subduction zone accretion.
Applegate, Bangs, Banks, Barnard, Black, Boyer, Bray, Butler, Byerlee, Byrne, Byrne, Calvert, Carson, Charlesworth, Clague, Couzens, Dahlen, Dahlen, Dahlen, Davis, Davis, Davis, DeMets, Dirk Klaeschen, Duncan, Elliott, Epard, Ernst Flueh, Fisher, Flueh, Flueh, Guo, Gutscher, Hyndman, Jamison, Juergen Adam, Karig, Khazaradze, Kukowski, Kukowski, Kulm, Kulm, Lallemand, Lehner, Lohrmann, MacKay, MacKay, Maltman, Mandl, Marone, McNeill, Morgan, Mulugeta, Nina Kukowski, O'Connor, O'Connor, Oleskevich, Platt, Ramos, Roeder, Satake, Seely, Silver, Snavely, Storti, Taira, von Huene, Ye, Zhao   +68 more
core   +1 more source

Evolution of Pore Fluid Pressure in an Accretionary Outer Wedge Over Megathrust Earthquake Cycles: The Northern Cascadia Example

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
The evolution of pore fluid pressure ( Pf$P_{\mathrm{f}}$) in the most seaward portion of a subduction accretionary prism plays an essential role in the cycle of tsunamigenic earthquakes. Based on recent geophysical observations, here we propose a testable conceptual model for this evolution for northern Cascadia offshore of Washington.
Tianhaozhe Sun, Kelin Wang
wiley   +1 more source

Future Cascadia megathrust rupture delineated by episodic tremor and slip [PDF]

, 2009
A suite of 15 episodic tremor and slip events imaged between 1997 and 2008 along the northern Cascadia subduction zone suggests future coseismic rupture will extend to 25 km depth, or approximately 60 km inland of the Pacific coast, rather than stopping ...
Chapman, James S., Melbourne, Timothy I.
core   +2 more sources