Results 191 to 200 of about 35,702 (291)

Dynamic Coupling Between Faulting, Rifting and Magmatism During 2021‐2025 Unrest on Reykjanes Peninsula, Iceland

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Interactions among faulting, earthquakes, and eruptions are fundamental to plate tectonics and hazard forecasting yet rarely observed along mid‐ocean ridges. On Iceland's Reykjanes Peninsula, seismotectonic–volcanic unrest resumed after nearly 800‐year hiatus, providing an opportunity to observe these interactions during 2021–2025 activity. By
Tomáš J. Fischer, Pavla Hrubcová, Josef Vlček, Gregory P. De Pascale, Thorvaldur Thordarson, Halldór Geirsson, Anthony Lomax, Robert Skoumal   +7 more
wiley   +1 more source

Cenozoic evolution of earth's strongest geoid low illuminates mantle dynamics beneath Antarctica. [PDF]

Sci Rep
Glišović P, Forte AM.
europepmc   +1 more source

Deformation of δ‐AlOOH and Its Solid Solution With Phase H as a Potential Source of Intra‐Slab Seismic Anisotropy in the Mid‐Mantle

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Seismic anisotropy is widely observed near subduction zones in the mantle transition zone and uppermost lower mantle, particularly along the western Pacific rim and tracks slabs geometries, implying an additional slab‐related source. Hydrous phases such as δ‐AlOOH and phase H (MgSiO4H2), which form a solid solution (δ‐H) and are stable in cool,
Wentian Wu, Yu Nishihara, Noriyoshi Tsujino, Sho Kakizawa, Yuji Higo   +4 more
wiley   +1 more source

Fluid injection interruption causes temporary changes in local stress field and induced seismicity at Krafla caldera, Iceland. [PDF]

Sci Rep
Glück E, Davoli R, Ágústsdóttir T, Garambois S, Gudnason EÁ, Lavallée Y, Mortensen AK, Scheu B, Vandemeulebrouck J.   +8 more
europepmc   +1 more source

Temporal Variations in Seismic Ambient Noise Identify Seasonal Changes in Basal Conditions at Sermeq Kujalleq in Kangia, Greenland

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Subglacial processes are key to glacier dynamics but remain poorly constrained due to limited in situ observations. We use continuous seismic and Global Navigation Satellite System (GNSS) measurements to investigate summer basal conditions at Sermeq Kujalleq in Kangia (SKK; Jakobshavn Isbræ), Kalaallit Nunaat (Greenland).
Janneke van Ginkel, Adrien Wehrlé, Ana Nap, Fabian Walter, Andrea Kneib‐Walter, Hugo Rousseau, Martin P. Lüthi   +6 more
wiley   +1 more source

Temporal Change in Resistivity Structure Before and After the 2018 Small Phreatic Eruption Iwo‐Yama Volcano, Kirishima Volcanic Complex, Japan

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract A small phreatic eruption occurred on April 2018 Iwo‐yama, Kirishima volcanic complex, Japan. We estimated the change in the subsurface resistivity structure before and after the phreatic eruption by repeated magnetotelluric (MT) measurements. A substantial decrease in resistivity was determined in the zone from the surface down to a depth of ...
K. Aizawa, N. Matsushima, Y. Matsunaga
wiley   +1 more source

Crustal velocity structure for Northern Egypt using ambient noise tomography. [PDF]

Sci Rep
Adam HAA, Hayashida T, Soliman MS, Elhadidy M.   +3 more
europepmc   +1 more source

3D Variations in Viscosity Reconcile the Strength of the Lower Mantle Inferred From Glacial Isostatic Adjustment and Mantle Convection

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract A widely accepted global model of glacial isostatic adjustment (GIA) is based on ICE‐6G ice loading and 1D‐viscosity model VM5a, a viscosity profile which remains at odds with mantle convection constraints such as from geoid modeling. We explore 3D‐viscosity variations in models of GIA and show that a model with lateral viscosity variations ...
A. Bellas‐Manley, K. Kang, T. W. Becker, R. S. Nerem   +3 more
wiley   +1 more source

Rupture of solidified ancient magma that impeded preceding swarm migrations led to the 2024 Noto earthquake. [PDF]

Sci Adv
Takagi R, Yoshida K, Okada T.
europepmc   +1 more source

Seismic Reflection Tomography

Brazilian Journal of Geophysics, 2018
openaire   +1 more source