Results 61 to 70 of about 3,318 (226)

Learning Wave Scattering Properties From Seismograms

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Heterogeneities in the Earth's crust scatter seismic waves at many scales, trapping seismic energy and producing coda waves that encode valuable information on geological structures. In regions such as volcanoes and fault systems, analyzing coda waves is essential for characterizing non‐uniform subsurface heterogeneity, improving ...
Reza Esfahani, Mirko Bracale, Léonard Seydoux, Michel Campillo   +3 more
wiley   +1 more source

Experimental Verification of a Two‐Dimensional Inverse Method for Turbidity Currents Using a Deep Neural Network

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Turbidites have been widely studied as indicators of the occurrences and magnitudes of paleo‐tsunamis and paleo‐earthquakes. Inversion to estimate flow conditions from turbidites offers valuable insights into the magnitudes of paleo‐seismic and tsunami events.
Seiya Fujishima, Hajime Naruse
wiley   +1 more source

Constraints on the Cryohydrological Warming of Firn and Ice in Greenland From Rayleigh Wave Ellipticity Data

Geophysical Research Letters, 2023
Rayleigh wave ellipticity measurements from seismic ambient noise recorded on the Greenland Ice Sheet (GrIS) show complex and anomalous behavior at wave periods sensitive to ice (T 
G. A. Jones, A. M. G. Ferreira, B. Kulessa, M. Schimmel, A. Berbellini, A. Morelli   +5 more
doaj   +1 more source

Seismic Velocity Variations, Ground Deformation and the Role of Fluids During a Low‐Energy Seismic Swarm

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract On March 9th $9\mathrm{th}$, 2023, three small earthquakes (3.8≤Mw≤4.5) $(3.8\le {M}_{w}\le 4.5)$ occurred near Umbertide (Central Italy), within 4 hours. Analyzing seismic ambient noise in the frequency band 0.1–1 Hz from six seismometers within 20 km of the Mw 4.5, we detect a significant drop in seismic velocity at the time of occurrence of
Eugenio Mandler, Lucia Zaccarelli, Massimo Nespoli, Maria Elina Belardinelli, Francesco Pintori, Enrico Serpelloni, Adriano Gualandi, Lauro Chiaraluce   +7 more
wiley   +1 more source

Supershear Transitions and Bilateral Asymmetric Rupture of the 2025 Sagaing (Myanmar) Earthquake Revealed by Geodetic and Seismic Observations

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract The Sagaing Fault (SF) accommodates major plate motion in Myanmar, yet large earthquakes along it have rarely been captured by modern geodetic and seismic observations. The 2025 Sagaing earthquake generated an exceptionally long rupture (∼535 km), offering a rare opportunity to investigate rupture dynamics along continental transform fault. We
Zhenjiang Liu, Jyr‐Ching Hu, Zhenhong Li, Chuang Song, Yi Chen, Chen Yu, Jiatong Wang, Xuesong Zhang, Jianbing Peng   +8 more
wiley   +1 more source

Evidence for Virtual Source‐Receiver Refractions in Cross Correlations of Infrasonic Ambient Noise

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Seasonal variability in source activity and atmospheric temperature were retrieved from 11 years of infrasonic ambient noise. Variable lag times between an array and single microbarometer were obtained from envelopes of cross‐correlation functions. Beamforming and one‐bit normalization significantly enhanced the stationary phase.
L. G. Evers, J. D. Assink, J. T. Fricke
wiley   +1 more source

Temporal Seismic Velocity Changes During the 2020 Rapid Inflation at Mt. Thorbjorn-Svartsengi, Iceland, Using Seismic Ambient Noise [PDF]

, 2021
Yeşim Çubuk Sabuncu, Kristín Jónsdóttir, Corentin Caudron, Thomas Lecocq, Michelle Parks, Halldór Geirsson, Aurélien Mordret   +6 more
openalex   +1 more source

Ambient‐Noise Multicomponent Multimodal Dispersion Characteristics in Thick Sedimentary Basins

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Ambient noise cross‐correlations enable the extraction of multimodal surface waves, yet resolving their complex dispersion characteristics is essential for robust subsurface imaging. Using dense array data from the North China Plain, we resolve multicomponent multimodal Rayleigh and Love wave dispersion with unprecedented detail.
Gongheng Zhang, Chunquan Yu, Zhengbo Li, Xiaofei Chen, Caiwang Shi, Xuping Feng, Fanchang Meng, Bo Li   +7 more
wiley   +1 more source

The use of passive seismic interferometry for the monitoring of subsurface fluids – from shallow groundwater to native or storage gas reservoirs [PDF]

E3S Web of Conferences
Passive (ambient noise) seismic interferometry provides multiple ways to gather information about the subsurface seismic properties using recordings of the seismic ambient noise signal.
Kremer Thomas, Voisin Christophe, Gaubert-Bastide Thomas, Ars Jean-Michel, Mouquet Pascal, Moinet Frédéric, Ferran Jean-Charles   +6 more
doaj   +1 more source

Amphibious Shear Wave Structure Beneath the Alaska‐Aleutian Subduction Zone From Ambient Noise Tomography

Geochemistry, Geophysics, Geosystems, 2021
I present a 3‐D isotropic shear wave velocity model of the crust and uppermost mantle beneath the Alaska‐Aleutian subduction zone offshore of the Alaska Peninsula, based on seismic data recorded by the Alaska Amphibious Community Seismic Experiment ...
Lili Feng
doaj   +1 more source