Results 1 to 10 of about 1,920 (208)

Validation of ShakeMaps Created From Global Navigation Satellite System (GNSS) Velocities

Earthquake Spectra, Volume 42, Issue 3, August 2026.
Ground velocity observations generated through a time difference of Global Navigation Satellite Systems (GNSS) phase observables and orbits have been shown to be comparable to seismic recordings without clipping during intense ground motions. Computing GNSS velocities is also computationally scalable and increases the density of ground motion ...
Jensen V. DeGrande, Brendan W. Crowell
wiley   +1 more source

Splay Fault Permeability Governs Fluid–Structure Interaction in Accretionary Wedges

Geophysical Research Letters
Interactions between upper plate deformation and plate interface seismicity in subduction zones remain poorly understood, but growing evidence indicates that fluid flow along splay faults modulates upper‐plate faulting.
Joaquin Julve, Åke Fagereng, Giovanni Toffol, Kohtaro Ujiie   +3 more
doaj   +1 more source

High‐Resolution Tomography for the Upper‐Mantle Structure in North China by Full‐Waveform Inversion of Teleseismic P Wave and Its Codas

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract We investigate the structure and tectonic environment in the crust and upper mantle beneath the North China Craton (NCC) by conducting a full‐waveform inversion of teleseismic P and its coda waves from densely distributed broadband seismic stations. A high‐resolution model involving P‐ and S‐wave velocities as well as density is constructed by
Xuan Zhao, Yi Wang, Jia Yi, Qiwen Zhu, Li Zhao   +4 more
wiley   +1 more source

Magma Pathways Beneath the Klyuchevskoy Volcanic Group, Kamchatka, Revealed by a Machine‐Learning‐Based Earthquake Catalog

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Klyuchevskoy Volcanic Group (KVG) is one of the world's largest clusters of subduction‐zone volcanoes and hosts a complex trans‐crustal magmatic system. Using a machine‐learning–based detection workflow applied to data from the KISS seismic experiment in 2015–2016, we obtained an enhanced earthquake catalog for KVG volcano‐magmatic activity ...
Weifan Lu, Nikolai M. Shapiro, Jannes Münchmeyer   +2 more
wiley   +1 more source

On the role of trans-lithospheric faults in the long-term seismotectonic segmentation of active margins: a case study in the Andes [PDF]

Solid Earth
Plate coupling plays a fundamental role in the way in which seismic energy is released during the seismic cycle. This process includes quasi-instantaneous release during megathrust earthquakes and long-term creep.
G. Yanez C., J. Piquer R., O. Rivera H.
doaj   +1 more source

Emergence of Subsurface Warming in the Southern Ocean Gateway Between New Zealand and Antarctica

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We analyze temperature variability in the surface and intermediate layers of the Southern Ocean from 1994 to 2025 using a 30‐year summertime record of Expendable Bathythermograph (XBT) measurements collected along the PX36 line across the New Zealand–Antarctica chokepoint of the Antarctic Circumpolar Current (ACC).
A. I. Ferola, Y. Cotroneo, P. Castagno, G. Fusco, P. Falco, G. Budillon, E. Zambianchi, G. Aulicino   +7 more
wiley   +1 more source

Nd Isotopic Equilibration During Channelized Melt Transport Through the Lithosphere: A Feasibility Study Using Idealized Numerical Models

Geochemistry, Geophysics, Geosystems
This study is motivated by the observed variability in trace element isotopic and chemical compositions of primitive ...
Mousumi Roy, G. Lang Farmer, Kellen Malone   +2 more
doaj   +1 more source

The Role of Mafic Intrusion in Seismotectonics: Insights From the 1668 M 8.5 Tancheng Earthquake Rupture Zone Along the Tan‐Lu Fault Zone, Eastern China

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The Tan‐Lu Fault Zone (TLFZ), the largest lithosphere‐scale strike‐slip fault in eastern China, has experienced multiple tectonic stages and remains high seismic activity, including the 1668 Tancheng earthquake (M 8.5). Here we employ dense‐array receiver functions to resolve crustal thickness, Vp/Vs ratio, and seismic discontinuities in the ...
Yuchen Huang, Huajian Yao, Mengxuan Yan, Shengzhe Zhao, Yichen Pan, Guili Zhou, Bohan Zhang   +6 more
wiley   +1 more source

Integrated Geophysical Imaging Reveals the Origin and Pathways of Mantle‐Derived CO2 Beneath the Tangra Yumco Rift, Central Tibet

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The Tangra Yumco Rift (TYR) in central Tibet is a key window for crust–mantle interactions during extension. We performed high‐resolution crust‐mantle imaging using receiver function analysis, 1‐D nonlinear S‐wave velocity inversion, and tomoDD tomography, revealing a vertical Crust–Mantle Degassing System (CMDS) bounded by the Zhala (ZF) and ...
Zongxu Li, Rizheng He, Hanhan Tang, Qiang Xu, Lei Gao, Yulan Li, Lihui Tan, Xiao Niu, Ruo Jia   +8 more
wiley   +1 more source

The Global Contribution of Individual Submarine Groundwater Discharge Components to the Ocean

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Saline submarine groundwater discharge (SSGD) contributes to ocean chemistry through water‐rock interactions as seawater circulates in coastal aquifers. Its components, driven by different mechanisms, exhibit varying residence times and degrees of chemical alteration, so constraining solute fluxes requires quantifying each component.
Y. Levy, H. A. Michael, S. Sahu, Y. Kiro
wiley   +1 more source