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
Post-magmatic fracturing, fluid flow, and vein mineralization in supra-subduction zones: a comparative study on vein calcites from the Troodos ophiolite and the Izu-Bonin forearc and rear arc. [PDF]
Quandt D, Kurz W, Micheuz P.
europepmc +1 more source
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
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
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
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]
Sim H +9 more
europepmc +1 more source
Mantle convection: clues from lithosphere sinking at subduction zones and numerical modelling.
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
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]
Liu HQ +10 more
europepmc +1 more source

