Results 141 to 150 of about 19,998 (261)

Influence of the Loading Stiffness on Sheared Granular Fault Gouge, and Applicability to Slip‐Weakening Theory

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Tectonic faults can slip in a spectrum of fault slip behaviors, from aseismic slip and slow ruptures to elasto‐dynamic earthquakes. Following frictional theory, laboratory experiments have shown that the basic ingredient that may control this transition is the interaction between the fault stiffness and the surrounding elastic medium.
Guilhem Mollon, Nathalie Casas, Marco Scuderi   +2 more
wiley   +1 more source

Seismo‐Acoustic Evidence for Meteoric Water Modulation of Hydrothermal Fluid Discharge

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Deciphering the signal of external processes on active hydrothermal dynamics represents a critical challenge in understanding volcanic unrest. At the Pisciarelli hydrothermal site, located within the densely populated Campi Flegrei caldera (Italy), we investigate the role of meteoric water influx in modulating shallow hydrothermal fluid ...
Rebecca Sveva Morelli, Dario Delle Donne, Stefano Caliro, Lucia Nardone, Massimo Orazi, Alessandro Aiuppa, Ciro Buonocunto, Aldo Benincasa, Antonella Bobbio, Antonio Caputo, Prospero De Martino, Sergio Gammaldi, Danilo Galluzzo, Flora Giudicepietro, Francesco Liguoro, Vincenzo Morra, Lucia Pappalardo, Rosario Peluso, Patrizia Ricciolino, Francesco Rufino, Giovanni Scarpato, Maria Grazia Soldovieri, Anna Tramelli, Mauro Antonio Di Vito   +23 more
wiley   +1 more source

Fault Roughness Controls Seismicity Front Migration During Fluid Injection

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract The increasing occurrence of injection‐induced earthquakes has raised public concern and highlighted the importance of understanding subsurface processes and mechanisms to assess induced seismic hazards and risks. We develop a simple physics‐based model to investigate how fault roughness controls the migration of seismicity during fluid ...
Hsiao‐Fan Lin, Thibault Candela, Jean‐Paul Ampuero   +2 more
wiley   +1 more source

Probabilistic seismic hazard assessment for the United Arab Emirates using integrated seismic source model

Journal of Asian Earth Sciences: X
This study emphasizes the role of active faults as seismogenic sources in probabilistic seismic hazard assessments (PSHA) in the United Arab Emirates (UAE).
Samer A. Barakat, Mohamed G. Arab, Raghad A. Awad, Dima A. Husein Malkawi, Abdulrahman Metawa, Maher Omar   +5 more
doaj   +1 more source

Modeling the Impact of Initiation Parameters on the Dynamics of the 2012 Te Maari Laterally Confined Debris Avalanche

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Volcanic debris avalanches can transform into highly mobile debris flows, reaching long runout distances and posing significant hazards to downstream populations. This high mobility arises from complex, evolving rheological behavior driven by dynamic changes in pore pressure, internal resistance, and material properties during the flow.
Juliette Vicente, Stuart Mead
wiley   +1 more source

Marine Mammals in the Anthropocene: Developing a Systematic Evidence Base of Threats to Nineteen Species

Mammal Review, Volume 56, Issue 1, March 2026.
Marine mammals are vulnerable to a variety of anthropogenic threats, yet a global systematic map of the literature for 19 species found both spatial and temporal disparity in research effort between threats and between species. There are knowledge gaps for species and threats, with effort unequal across many species' ranges.
Emily L. Hague, Rachael R. Sinclair, Joanna L. Kershaw, Davina Derous, Ross M. Culloch, Carol E. Sparling, Nicholas Baker‐Horne, Marija Sciberras, Teresa F. Fernandes, Lauren H. McWhinnie   +9 more
wiley   +1 more source

Fast Probabilistic Seismic Hazard Analysis through Adaptive Importance Sampling

Bulletin of the Seismological Society of America
Probabilistic Seismic Hazard Analysis (PSHA) traditionally relies on two computationally intensive approaches: (a) Riemann Sum and (b) conventional Monte Carlo (MC) integration. The former requires fine slices across magnitude, distance, and ground motion, and the latter demands extensive synthetic earthquake catalogs.
Soung Eil Houng, Luis Ceferino
openaire   +1 more source

Radiosonde‐to‐Space (R2S) Atmospheric Specifications: Bridging Observations and Models for Infrasound Propagation

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Infrasound propagation is inherently asymmetric and time‐dependent, making accurate atmospheric specifications essential for predicting when and where signals arrive. The Naval Research Laboratory's Ground‐to‐Space (G2S) model is widely used for this purpose, yet discrepancies between G2S predictions and observations highlight the need for ...
Loring P. Schaible, Elizabeth A. Silber
wiley   +1 more source

Machine Learning and Seismic Hazard: A Combination of Probabilistic Approaches for Probabilistic Seismic Hazard Analysis

Probabilistic seismic hazard analysis (PSHA) integrates seismology with invitation of civil engineering. Allin Cornell’s 1968 work, developed with Dr. Emilio Rosenblueth and Dr. Luis Esteban Maraboto, revolutionized earthquake engineering by making seismology practical for construction.
openaire   +1 more source

Why Firn Quakes

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Snow dampens sounds, but anecdotal reports concisely describe audible propagating collapse events—firnquakes—in Antarctic and Arctic snowfields. We propose combining granular and continuum mechanics to form a testable theory for conditioning, triggering, and propagation of firnquakes consistent with scarce data.
A. Voigtländer, B. Gee
wiley   +1 more source