Results 141 to 150 of about 67,700 (324)

A Comprehensive Crustal Coda Attenuation Map of Continental China

open access: yesGeophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract Seismic coda wave attenuation (QC) reflects both intrinsic inelasticity and small‐scale heterogeneities in the Earth's crust, offering insights into its thermal state and structural complexity. Continental China, characterized by widespread plate boundary deformation, is among the most tectonically active regions globally.
Fan Yang   +7 more
wiley   +1 more source

Longwave radiation anomalies associated with seismic activity in the northern Tibetan Plateau

open access: yesFrontiers in Earth Science
Seismically active northern Tibetan Plateau necessitates the application of remote sensing-driven earthquake precursor detection. We applied wavelet transform and power spectrum analysis to outgoing longwave radiation (OLR) from 37 M ≥ 5.0 earthquakes ...
Yifei Gong   +7 more
doaj   +1 more source

Impact of Groundwater Head Changes on the Permeability of Bedrock Aquifer‐Aquitard Systems

open access: yesGeophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract Understanding how groundwater level changes affect the permeability of bedrock aquifer‐aquitard systems is important for groundwater management, yet this relationship remains poorly understood. This study focuses on Tangshan in the northeastern North China Plain, utilizing tidal response analysis to investigate the dynamic interplay between ...
Xin Liao   +5 more
wiley   +1 more source

Frequency Dependent Microseisms Sources: A Case Study in Oregon

open access: yesGeophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract The origin of microseisms—whether from deep‐ocean sources or coastal reflections—has been debated for decades. In this study, we use Distributed Acoustic Sensing (DAS) and Ocean Bottom Seismometer data collected offshore Oregon to investigate microseisms sources across a range of frequency bands. Our results reveal a clear frequency dependence:
Han Xiao   +3 more
wiley   +1 more source

Modelling the Importance of Ground and Strong‐Motion Variables on the Damage Status in the 2023 Kahramanmaraş Earthquakes Using Supervised Machine Learning

open access: yesGeoscience Data Journal, Volume 12, Issue 4, October 2025.
KNN achieved the highest performance (0.989) using the full dataset and 0.988 with ground‐based parameters. EBd and f0 were key contributors to damage, while PGA dominated strong‐motion models. Specificity consistently outperformed sensitivity in earthquake‐parameter models.
Mustafa Senkaya   +3 more
wiley   +1 more source

Emerging technologies and supporting tools for earthquake disaster management: A perspective, challenges, and future directions

open access: yesProgress in Disaster Science
Seismology is among the ancient sciences that concentrate on earthquake disaster management (EQDM), which directly impact human life and infrastructure resilience. Such a pivot has made use of contemporary technologies.
Mohamed S. Abdalzaher   +2 more
doaj   +1 more source

Using Vp$V_p$ and Vs$V_s$ to characterize the spatial extent of shear strengthening under a longleaf pine

open access: yesNear Surface Geophysics, Volume 23, Issue 5, Page 521-534, October 2025.
Abstract Tree roots modify the elastic and mechanical properties of soil. High‐resolution seismic refraction surveys offer a novel, noninvasive approach to characterize how roots impact the elastic properties of soil beneath trees. This study presents two perpendicular profiles of P‐wave (Vp$V_p$) and transversely polarized S‐wave (Vs$V_s$) velocities ...
Brady A. Flinchum
wiley   +1 more source

Contributions to Proceedings from the NATO Advanced Research Workshop on the Seismology of the Sun and the Distant Stars [PDF]

open access: yes
Advanced research results on the seismology of the Sun and distant stars is presented. Topics presented include: (1) detection of global convective wave flows; (2) observation of low degree p-mode oscillations; and (3) techniques for spectral ...

core   +1 more source

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