Results 131 to 140 of about 2,090 (259)

Dike‐Induced Earthquakes as Probes of the Local Stress Field Prior to the 1998 Eruption of the Piton de la Fournaise Volcano, La Réunion

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Volcano‐tectonic (VT) earthquakes generated during dike propagation provide useful constraints on stress changes in volcanic systems. During the 1998 pre‐eruptive unrest at Piton de la Fournaise, ∼600 VT earthquakes were recorded. Using manually picked first‐motion polarities and corrected station metadata, we calculated more than 400 high ...
Yiwen Huang, Yan Zhan, Diana C. Roman, Valérie Ferrazzini, Zacharie Duputel   +4 more
wiley   +1 more source

Oceanic upper crustal accretion by melt sill and lava flow interaction at Axial volcano. [PDF]

Nat Commun
Wu H, Xie W, Singh SC, Carton H, Kent GM, Arnulf AF, Harding AJ.   +6 more
europepmc   +1 more source

Gravitational Stability of Hydrated SiO2 and Basaltic Crust in the Lower Mantle

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract We determined thermal equations of state of hydrated stishovite and CaCl2‐type SiO2 up to 100 GPa and 3,000 K to assess the gravitational stability of hydrated stishovite and basaltic crust in the lower mantle. Using machine‐learning based atomistic simulations, we examined three hydrogen dissolution mechanisms: hydrogarnet‐type, interstitial ...
Yanyao Zhang, Chenxing Luo
wiley   +1 more source

Modeling of the Arabian/Nubian shield's geothermal structure: a multi-parametric analysis using geophysical and geological tools. [PDF]

Sci Rep
Haggag M, Sobh M, Hassan S, Hegab MAE, Shebl A, Ghazala HH.   +5 more
europepmc   +1 more source

Seismic Constraints of the 23 November 2025 Hayli Gubbi Eruption Sequence in Afar, Ethiopia

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract On 23 November 2025, the Hayli Gubbi volcano in Afar (Ethiopia) erupted in a massive explosion. We present the first seismic characterization using data from 13 regional seismological stations. Seismograms reveal signals consisting of a minute‐long precursor, a main eruptive phase, and secondary events hours later.
F. Limberger, S. Alemayehu, G. Rümpker, A. Ayele   +3 more
wiley   +1 more source

Three stages of plateau evolution manifested in present-day Tibetan Plateau. [PDF]

Nat Commun
Cheng S, Xiao X, Sun L, Wang W, Wu J, Wang X, Liang X, Tian X, Li H, Wen L.   +9 more
europepmc   +1 more source

Bayesian Modeling of Crustal Azimuthal Anisotropy Supports Partial Crust–Mantle Anisotropic Decoupling in a Continental Back‐Arc, Northeast China

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract How crustal deformation responds to complex mantle flow in continental back‐arc settings remains poorly constrained. Here, we develop a Bayesian working‐likelihood approach to estimate crust‐averaged azimuthal anisotropy from P‐wave receiver functions. The method separates crust‐averaged velocity anisotropy from dip‐related apparent anisotropy
Chunsen Li, Xiao Xu, Xiaoyu Guo, Xiaofei Tong, Hengcheng Ying, Lingyan Li   +5 more
wiley   +1 more source

Crustal constraints on the surface expression of mantle upwelling in a back-arc passive margin setting. [PDF]

Sci Rep
Hwang JY, Chang SJ, Sohn YJ, Kim KH.
europepmc   +1 more source

Lunar Dayside Surface Potentials in the Terrestrial Magnetotail Inferred From Comparing Observed and Modeled Photoelectrons

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract As an airless body, the lunar surface is charged as a result of balancing electric currents into and away from the surface. Lunar surface charging is important for both scientific and human‐exploration purposes. The nightside surface charging has been well characterized by previous studies, but less so for the dayside.
Shaosui Xu, Andrew R. Poppe, Yuki Harada, Phillip C. Chamberlin   +3 more
wiley   +1 more source

The importance of past rifting in large igneous province development. [PDF]

Nature
Kounoudis R, Bastow ID, Ebinger CJ, Goes S, Zhou P, Musila M, Ogden CS, Ayele A.   +7 more
europepmc   +1 more source