Results 81 to 90 of about 1,989 (209)

Subducting Slab Thermo‐Petrologic Structure and Intermediate‐Depth Supra‐Slab Earthquakes Beneath Southern Colombia

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract We develop 2‐D thermo‐petrologic models for two transects through southern Colombia and compare the model‐predicted temperature distributions and depths of slab dehydration with seismological observations. Along the northern transect, earthquakes occur above the relatively young subducting Nazca slab at 80–160‐km depths.
Benjamin M. Knott‐Byars, Ikuko Wada, Brandon T. Bishop, Linda M. Warren, Sungwon Cho   +4 more
wiley   +1 more source

Seafloor observations indicate spatial separation of coseismic and postseismic slips in the 2011 Tohoku earthquake

Nature Communications, 2016
Postseismic slip of the 2011 Tohoku earthquake in Japan has occurred on the plate interface, but quantifying the slip has been difficult due to a lack of seafloor data.
Takeshi Iinuma, Ryota Hino, Naoki Uchida, Wataru Nakamura, Motoyuki Kido, Yukihito Osada, Satoshi Miura   +6 more
doaj   +1 more source

Months‐Long Crustal Deformation Driven by Aseismic Slips and Pore Pressure Transients Triggered by Local and Regional Earthquakes

Geophysical Research Letters, 2021
Strong strain and pore pressure changes are observed after three Mw 4.5+ local and one Mw 7.2 regional earthquake during 2010–2017 in borehole strainmeters near Anza, California.
Zhou Lu, Lianxing Wen
doaj   +1 more source

Does Geocentric Sea‐Level Rise in the Maritime Continent Reveal a Tectonic Fingerprint?

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The islands of the Maritime Continent are highly vulnerable to sea‐level rise driven by barystatic, sterodynamic, and vertical land motion (VLM) processes. While tectonics is known to affect relative sea‐level through VLM, its influence on long‐term geocentric sea level (GSL) through crustal deformation and gravity field perturbations remains ...
Nidheesh Gangadharan, Sophie Coulson, Brent G. Delbridge, Grace Ertel, Aurel Moise, Matthew D. Palmer   +5 more
wiley   +1 more source

Postseismic GRACE and GPS observations indicate a rheology contrast above and below the Sumatra slab [PDF]

, 2015
More than 7 years of observations of postseismic relaxation after the 2004 Sumatra-Andaman earthquake provide an improving view on the deformation in the wide vicinity of the 2004 rupture.
Vermeersen, L.L.A., Riva, R.E.M. (author), Riva, R.E.M., Broerse, D.B.T. (author), Govers, R., Vermeersen, L.L.A. (author), Govers, R. (author), Broerse, D.B.T., Simons, W.J.F., Simons, W.J.F. (author)   +9 more
core   +2 more sources

Decomposition of Postseismic Signals Following ≥Mw 6 Earthquakes on Sumatra Island Based on Sumatran GPS Array (SuGAr) Observations

Journal of Geospatial Information Science and Engineering
Indonesia, located at the convergence of four major tectonic plates, experiences frequent large earthquakes, particularly in Sumatra, due to the subduction of the Indo-Australian Plate and the Sumatra Fault Zone (SFZ).
Tattyana Wening Kalbuadi, Nurrohmat Widjajanti, Cecep Pratama   +2 more
doaj   +1 more source

Insights into Very Early Afterslip Associated with the 2021 M 8.2 Chignik, Alaska Earthquake Using Subdaily GNSS Solutions

Remote Sensing, 2023
Based on subdaily kinematic GNSS solutions, the fault slip properties during the very early postseismic phase after the 2021 M 8.2 Chignik earthquake are investigated in this paper.
Yunfei Xiang, Yankai Bian, Jie Liu, Yin Xing   +3 more
doaj   +1 more source

Role of Poroelasticity During the Early Postseismic Deformation of the 2010 Maule Megathrust Earthquake

, 2022
Megathrust earthquakes impose changes of differential stress and pore pressure in the lithosphere‐asthenosphere system that are transiently relaxed during the postseismic period primarily due to afterslip, viscoelastic and poroelastic processes ...
Heidbach, Oliver, Bedford, Jonathan; 1 Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences Potsdam Germany, Metzger, Sabrina, Oncken, Onno; 1 Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences Potsdam Germany, Bookhagen, Bodo; 2 Institute of Geosciences University of Potsdam Potsdam Germany, Cotton, Fabrice, Bedford, Jonathan, Moreno, Marcos, Heidbach, Oliver; 1 Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences Potsdam Germany, Moreno, Marcos; 4 Departamento de Geofísica University of Concepción Concepción Chile, Bookhagen, Bodo, Cotton, Fabrice; 1 Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences Potsdam Germany, Oncken, Onno, Peña, Carlos, Metzger, Sabrina; 1 Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences Potsdam Germany   +14 more
core   +2 more sources

Integrated Investigation on Heterogeneous Lower Crust Rheology in Kyushu and Afterslip Behavior Following the 2016 Mw7.1 Kumamoto Earthquake

Geophysical Research Letters
The viscoelastic lower crust beneath Kyushu Island, influenced by the volcanic arc, interplays with active crustal faults in this region and helps to shape local tectonics.
Yiqing Liu, Xin Cui, Yan Hu, Jian Zhang, Yunguo Chen   +4 more
doaj   +1 more source

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source