Results 141 to 150 of about 2,183,650 (313)

Foreshock Migration Preceding the 2025 Mw 8.8 Kamchatka Earthquake: Insights From Single‐Station Observations

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract We investigate the spatiotemporal evolution of foreshocks preceding the 2025 Mw 8.8 Kamchatka earthquake by applying single‐station analysis to waveforms recorded at the nearest seismic station. Our results reveal a southwestward migration of foreshocks toward the mainshock epicenter through multiple stages, with a migration speed of ∼7.0 km ...
Ji Zhang   +3 more
wiley   +1 more source

Male Agonistic Behavior on Atlantic Cod Spawning Grounds

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
The mating system of the Atlantic cod (Gadus morhua) has been described as a lek, a mating system where male–male aggressions are expected. However, observing aggressions directly in marine environments is challenging. Using accelerometer tags we show that male–male agonistic interactions, inferred from activity levels, are indeed present on natural ...
J. E. Skjæraasen   +11 more
wiley   +1 more source

Seismic Ambient Noise [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2019
openaire   +2 more sources

Seismic random noise separation and suppression based on improved variational mode decomposition via grey wolf optimization.

open access: yesPLoS ONE
Seismic noise separation and suppression is an important topic in seismic signal processing to improve the quality of seismic data recorded at monitoring stations.
Zhenjing Yao   +4 more
doaj   +1 more source

Ambient noise and ERT data provide insights into the structure of co-seismic rock avalanche deposits in Sichuan (China) [PDF]

open access: hybrid, 2021
Vincenzo Del Gaudio   +5 more
openalex   +1 more source

Deep Quake Dynamics: A Multimodal Fault‐Aware Approach to Earthquake Magnitude and Occurrence Time Forecasting

open access: yesGeoscience Data Journal, Volume 13, Issue 2, April 2026.
EQMT integrates earthquake catalog data, fault‐network geometry, engineered features, and graph embeddings in a unified framework for forecasting earthquake magnitude and occurrence time. The framework is designed to reflect inter‐fault spatial dependencies together with temporal seismic patterns, addressing limitations of approaches based only on ...
Kiymet Kaya   +5 more
wiley   +1 more source

Monitoring of water volume in a porous reservoir using seismic data: Validation of a numerical model with a field experiment

open access: yesNear Surface Geophysics, Volume 24, Issue 2, Page 110-127, April 2026.
Abstract As global groundwater levels continue to decline rapidly, there is a growing need for advanced techniques to monitor and manage aquifers effectively. This study focuses on validating a numerical model using seismic data from a small‐scale experimental setup designed to estimate water volume in a porous reservoir.
Mahnaz Khalili   +8 more
wiley   +1 more source

Velocity estimation in GPR data based on diffraction analysis: Methodology and application to Antarctic firn

open access: yesNear Surface Geophysics, Volume 24, Issue 2, Page 170-186, April 2026.
Abstract This study presents a methodological framework for estimating electromagnetic wave velocities in ground‐penetrating radar (GPR) data based exclusively on the analysis of diffractions. The approach integrates diffraction separation using the plane wave destruction algorithm and subsequent velocity refinement through the residual diffraction ...
Ian E. Vogado   +3 more
wiley   +1 more source

Suppressing random noise in seismic signals using wavelet thresholding based on improved chaotic fruit fly optimization

open access: yesEURASIP Journal on Advances in Signal Processing
Suppressing random noise in seismic signals is an important issue in research on processing seismic data. Such data are difficult to interpret because seismic signals usually contain a large amount of random noise.
Feng Yang, Jun Liu, Qingming Hou, Lu Wu
doaj   +1 more source

Modal sensitivity of rock glaciers to elastic changes from spectral seismic noise monitoring and modeling [PDF]

open access: gold, 2021
Antoine Guillemot   +6 more
openalex   +1 more source

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