Results 91 to 100 of about 3,083 (240)

Gamma Rays Signal the Vulnerability of Forest to Extreme Drought

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Extreme drought and heat are driving forest die‐off globally, yet regional‐scale mapping of subsurface water storage capacity, governing forest vulnerability, remains a major challenge. Here, we demonstrate that airborne gamma‐ray spectrometry (GRS) of potassium (40K) decay provides a powerful proxy for subsurface constraints on water ...
Gavan S. McGrath, Joseph B. Fontaine, Richard Van Dongen, Katinka X. Ruthrof   +3 more
wiley   +1 more source

Comparison of Seismic Performance Assessment Using Observed or Simulated Ground Motions in Seismic Hazard Analysis and Ground Motion Selection

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 10, Page 2449-2465, August 2026.
ABSTRACT This paper illustrates opportunities for the use of simulated ground motions in seismic performance assessment – from seismic hazard, ground‐motion selection, response history analysis, and seismic demand hazard calculation. The illustration is through a comparative analysis with the conventional alternative of observed ground motions.
Vahid Loghman, Brendon A. Bradley, Claudio Schill   +2 more
wiley   +1 more source

Integrated Attenuation Compensation and Q-Constrained Inversion for High-Resolution Reservoir Characterization in the Ordos Basin

Applied Sciences
Quantitative seismic characterization of transitional shale gas resources in the Da Ning–Ji Xian area, Ordos Basin, is severely hampered by complex coal-measure stratigraphy and rapid lithological variations.
Yugang Yang, Jingtao Zhao, Tongjie Sheng, Hongjie Peng, Qin Zhang, Zhen Qiu   +5 more
doaj   +1 more source

An SSI‐Informed Design for Tuned Mass Dampers With Small‐to‐Large Mass Ratios

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 10, Page 2511-2529, August 2026.
ABSTRACT Tuned Mass Dampers (TMDs) are used to mitigate structural vibrations induced by seismic or wind excitation, by tuning the device to the system's dominant resonant frequencies. However, the TMD effectiveness can be undermined by soil‐structure interaction, which can lead to elongation of the vibration periods and to combined translational ...
Davide Noè Gorini, Pasquale Roberto Marrazzo, Elide Nastri, Rosario Montuori   +3 more
wiley   +1 more source

Research on the Critical Mechanical Criterion for Stick‐Slip Instability of Mining‐Affected Normal Faults Based on the Rate‐and‐State Friction Law

Energy Science &Engineering, Volume 14, Issue 8, Page 3935-3947, August 2026.
Mining disturbance tends to trigger fault stick‐slip instability and induce disasters. This paper establishes a mechanical model to propose a critical criterion, which is verified to be reliable via FLAC3D, providing a theoretical basis for early warning of fault slip disasters.
Bowen Wu, Yanhui Li
wiley   +1 more source

Spatial variability of denudation rates and transient landscape adjustment in low‐deforming mountains (the Strengbach catchment, Vosges Mountains, France)

Earth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Erosion across the landscape is described at first order by a limited number (nine) of homogenous geomorphological and lithological domains. Using a dense set of basin wide denudation rates, it is possible to retrieve the contribution of each litho‐morpho‐domains as a function of their respective surface.
Bastien Mathieux, Daniel S. Moreno Martin, Jérôme van der Woerd, Raphael Di Chiara Roupert, Gilles Rixhon, Anne‐Sophie Mériaux, Silke Merchel, Stephanie Neuhuber, Alexander Wieser, Oscar Marchhart, François Chabaux   +10 more
wiley   +1 more source

Fault‐controlled uplift segmentation and crust–mantle heterogeneity in the topographic evolution of the Sındırgı Segment (Western Anatolia) ruptured during the 2025 M6.1 earthquake sequence

Earth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Swath profile along the Sındırgı Segment. Grey curves show minimum, mean and maximum elevations, and the thick grey line shows elevation‐corrected Moho depth. Coloured circles indicate relative rock uplift from river‐profile inversion while the red curve shows cumulative uplift.
Savaş Topal, Murat Nas, Elif Akgün, Mustafa Softa   +3 more
wiley   +1 more source

Seismic attenuation transients reveal progressive crustal modification before and during the 2023 Türkiye earthquakes

Scientific Reports
We present the first spatiotemporally resolved separation of scattering and intrinsic seismic attenuation across the East Anatolian Fault Zone, capturing their evolution before and during the 2023 Türkiye earthquake doublet.
Simona Gabrielli, Aybige Akinci, Yijian Zhou, Edoardo Del Pezzo, Luca De Siena   +4 more
doaj   +1 more source

Evaluating the U.S. Geological Survey's Earthquake Shaking Hazard Forecasts and Their Implications on Seismic Risk

Earthquake Spectra, Volume 42, Issue 3, August 2026.
We analyze the last six update cycles of the long‐term probabilistic earthquake shaking hazard forecast from the U.S. Geological Survey (USGS) and discuss the changes in hazard estimates from the 1996 to the latest 2023 update of the National Seismic Hazard Model (NSHM) for the conterminous United States.
Kishor S. Jaiswal, Mark D. Petersen, N. Simon Kwong, Arthur D. Frankel, Kenneth S. Rukstales, Allison M. Shumway, Robert E. Chase, Peter M. Powers   +7 more
wiley   +1 more source

Regional Earthquake Ground Motion Simulations for Southern California With EQSIM: Insights From the 2008 Chino Hills, 2024 Highland Park, and 2021 Carson Earthquakes

Earthquake Spectra, Volume 42, Issue 3, August 2026.
This study presents physics‐based, 3D simulations using the EQSIM framework for several earthquakes in the Los Angeles region. The primary objective was to assess the ability of deterministic physics‐based ground motion simulations to reproduce the observed motions from historical events.
Chu‐Han (Clifford) Yen, Arben Pitarka, Houjun Tang, Rie Nakata, David McCallen, Ertugrul Taciroglu   +5 more
wiley   +1 more source