Results 61 to 70 of about 93,230 (195)

Independent component analysis and finite element modelling of the 2004–2005 ground deformation in Tenerife (Canary Islands)

Frontiers in Earth Science
Historic volcanic activity in Tenerife was concentrated within two of the island’s three dorsals and on the Teide-Pico Viejo complex located inside Las Cañadas caldera.
Monika Przeor, Monika Przeor, Luca D’Auria, Luca D’Auria, Susi Pepe, Pietro Tizzani, Andrea Barone, Andrea Vitale, Nemesio M. Pérez, Nemesio M. Pérez, Raffaele Castaldo   +10 more
doaj   +1 more source

Numerical Simulations of 3D Scattering Structures Reveal Systematic Underestimation of Marsquake Magnitudes

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Determining marsquake magnitudes is essential for assessing seismic activity on Mars, yet previous estimates neglect three‐dimensional (3D) scattering effects. The exceptionally long‐lasting coda of the largest recorded marsquake, S1222a, provides a unique opportunity to quantify how crustal heterogeneities affect waveform propagation and ...
Mingwei Dai, Philippe Lognonné, Taichi Kawamura, Daoyuan Sun, Sabrina Menina, Zongbo Xu, Sreejaya Kizhaekke Pakkathillam   +6 more
wiley   +1 more source

Surface deformation and source modeling of Ayaz-Akhtarma mud volcano, Azerbaijan, as detected by ALOS/ALOS-2 InSAR

Progress in Earth and Planetary Science, 2018
Azerbaijan, located on the western edge of the Caspian Sea in Central Asia, has one of the highest populations of mud volcanoes in the world. We used satellite-based synthetic aperture radar (SAR) images derived from two L-band SAR satellites, ALOS ...
Kento Iio, Masato Furuya
doaj   +1 more source

Fault‐Controlled Plumbing System Beneath Lipari Volcanic Island Revealed by Seismic Matrix Imaging

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Lipari Island hosts an active magmatic–hydrothermal system, but its deep plumbing architecture remains poorly resolved due to strong seismic scattering. We apply passive seismic matrix imaging to public vertical‐component cross‐correlation functions from the dense 2018 Lipari nodal array, recovering relative‐reflectivity structures to ∼10 km ...
Jia Wei, Qiancheng Liu, Ling Chen
wiley   +1 more source

The Maintenance of the Longitudinal Subtropical Jet Structure During Austral Winter

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract The austral winter subtropical jet maintenance is analyzed by comparing the observed upper tropospheric zonal momentum budget with an idealized aquaplanet model simulation with localized tropical heating in the summer hemisphere. The model and observations show great similarity, demonstrating the dominant role of localized tropical convection ...
Orli Lachmy, Ian White
wiley   +1 more source

A Shape Optimization Approach for Inferring Sources of Volcano Ground Deformation

Geophysical Research Letters
One of the main goals of volcano geodesy is to improve the understanding of how an increase in pressure related to magma accumulation causes ground deformation in order to evaluate volcanic unrest.
Théo Perrot, Freysteinn Sigmundsson, Charles Dapogny   +2 more
doaj   +1 more source

Escalating Uncertainty Under Increasing Risk in Compound Heat and Precipitation Extremes

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Projection uncertainty fundamentally constrains climate adaptation, yet its evolution in compound heat and precipitation extremes (CHPE) remains poorly understood. Here we quantify CHPE uncertainty using 14 CMIP6 models and two single‐model initial‐condition large ensembles.
Zhiling Zhou, Liping Zhang, Jijun Xu, Jun Xia   +3 more
wiley   +1 more source

Source‐Unbiased Subsurface Monitoring With Seismic Noise

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract This study addresses a key limitation of seismic noise interferometry for subsurface monitoring: the impact of non‐stationary sources on seismic velocity change estimates. Conventional methods rely on time‐period references, which can inherit source‐related effects when source conditions vary, biasing the estimated velocity changes.
Pilar Sánchez‐Pastor, Martin Schimmel, Samuel Jorde, Helena Seivane, Jordi Díaz, Abraham Balaguera, Susana Rodríguez, Montserrat Torné   +7 more
wiley   +1 more source

Plume‐Fed Magmatic Fluids Weakened Crust and Promoted a Large Intraplate Earthquake in Northern Hainan (South China)

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Large intraplate earthquakes are paradoxical because they occur far from active plate boundaries. Northern Hainan Island (South China) hosts the 1605 Qiongbei M7.5 earthquake within a volcanic province linked to the Hainan mantle plume. New shear‐wave velocity images reveal two shallow low‐velocity zones extending to ∼10 km depth: a stronger ...
Lue Yang, Lun Li, Chen Cai, Jialong He, Hongyi Li, Yulong Xue, Jinming Zhang, Yuan Gao, Ziwei Li, Rui Gao   +9 more
wiley   +1 more source

Sedimentology and geochemistry of the recent sediments of the river system on Hurd Peninsula, Livingston Island, Antarctica

The Depositional Record, Volume 12, Issue 4, September 2026.
This study investigates the sedimentology and geochemistry of recent sediments from ephemeral river systems on Hurd Peninsula, Livingston Island, Antarctica. These systems are important for understanding sedimentary and geochemical processes in unique polar environments.
Yakup Çelik, Merve Özyurt, Raif Kandemir   +2 more
wiley   +1 more source