Results 131 to 140 of about 709,240 (263)

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

open access: yesPerspectives 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   +5 more
wiley   +1 more source

Reevaluating Large‐Scale Deformation Precursors of Great Subduction Earthquakes: Insights From Satellite Gravity and GNSS Data

open access: yesGeophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract Validating the controversial hypothesis that precursory gravity changes arise from sudden acceleration of subducting plates potentially triggering great earthquakes is of paramount importance. To rigorously evaluate proposed precursors for the 2011 Mw 9.0 Tohoku and 2010 Mw 8.8 Maule earthquakes, we develop a statistical framework that enables
Dhamsith Weerasinghe   +3 more
wiley   +1 more source

Negative Residual Topography in Global Back‐Arc Basins Scales With Slab Dip

open access: yesGeophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract Dynamic topography above subduction zones is widely inferred, but its magnitude and controls remain poorly constrained at the global scale. Here, we estimate residual topography across a range of back‐arc basins by correcting bathymetry for sediment loading, crustal structure, and lithospheric age, and compare the anomalies with slab geometry ...
Yuwei Zhang   +2 more
wiley   +1 more source

Structure and Propagation of Mesoscale Cyclonic Eddies in the Brazil–Malvinas Confluence

open access: yesInternational Journal of Climatology, Volume 46, Issue 13, 15 November 2026.
Between 1993 and 2022, 1386 cyclonic eddies were identified in the Brazil–Malvinas Confluence, one of the most energetic regions of the South Atlantic. While most eddies dissipated locally, a smaller number of individuals, more energetic, and longer lived propagated predominantly south‐westward and north‐eastward, driven by topographic constraints and ...
Rafaella Oliveira Santos   +2 more
wiley   +1 more source

Seismic anisotropy and subduction in Southern Italy

open access: yes, 2007
In the current work we present a large collection of shear wave splitting measurements in the Calabrian Arc-Tyrrhenian basin subduction system. For our analysis we used earthquakes recorded from 2003 to 2005 at the CAT/SCAN temporary network and at the ...
Steckler, M.S.   +2 more
core   +1 more source

Serpentine's wet breakdown path and enhanced water flux in cold subduction zones. [PDF]

open access: yesNat Commun
Sim H   +9 more
europepmc   +1 more source

Mantle convection: clues from lithosphere sinking at subduction zones and numerical modelling.

open access: yes, 2017
Subduction zones show a worldwide asymmetry that can be observed in slab dip, kinematics of the subduction hinge, morphology, structural elevation, gravity anomalies, heat flow, metamorphic evolution, subsidence and uplift rates, depth of the ...
Carlo Doglioni   +2 more
core  

Influence of Site Amplification Approaches in PSRA: Insights From Five Different Cities

open access: yesEarthquake Spectra, Volume 42, Issue 4, November 2026.
Regional and national seismic hazard models used in probabilistic seismic risk analysis often rely on generalized proxy‐based site terms to account for ground shaking amplification. This can result in coarse representations of site response, which can introduce bias or additional uncertainty in the associated risk results.
Julián Montejo   +3 more
wiley   +1 more source

Heavy boron isotopes reveal deep carbon recycling in hot subduction zones. [PDF]

open access: yesNat Commun
Liu HQ   +10 more
europepmc   +1 more source

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