Results 121 to 130 of about 27,395 (224)

Is the Deep Martian Mantle Heterogeneous? A Reappraisal of Seismological Evidences

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract It has been proposed that the deep Martian mantle contains distributed heterogeneities preserved since the accretion of the planet. This result relies on a multiple‐scattering interpretation of frequency‐dependent arrival times of P $P$‐waves detected in the spectrograms of teleseismic Martian events.
L. Margerin
wiley   +1 more source

Decomposing Earthquake Moment Tensors Using P‐Wave First Motion: Insights Into Global Events With Significant Non‐Double‐Couple Components

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract The decomposition of earthquake moment tensors into isotropic and deviatoric components is standard in seismology. The deviatoric part is further separated into double‐couple (DC) and non‐double‐couple (NDC) components, with NDC providing insights into source complexity. However, existing methods often yield inconsistent results with different
Zhifeng Wang   +4 more
wiley   +1 more source

Monitoring diffuse volcanic degassing with seismic ambient noise [PDF]

open access: yesNatural Hazards and Earth System Sciences
Diffuse volcanic degassing is a persistent and often underestimated natural hazard, with potential impacts on air quality, ecosystem health, and volcanic risk management.
H. Seivane, H. Seivane, M. Schimmel
doaj   +1 more source

Seismic Ambient Noise [PDF]

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

Seismic response of a slow-moving landslide: exploring data from two years of seismic monitoring at the Hollin Hill Landslide Observatory (UK)

open access: yesSeismica
Early-warning of landslide failure relies on understanding subsurface processes that drive slope destabilisation, including changes in moisture content or mechanical behaviour.
Arnaud Watlet   +8 more
doaj   +1 more source

SEIS: Insight's Seismic Experiment for Internal Structure of Mars. [PDF]

open access: yes, 2019
By the end of 2018, 42 years after the landing of the two Viking seismometers on Mars, InSight will deploy onto Mars' surface the SEIS (Seismic Experiment for Internal Structure) instrument; a six-axes seismometer equipped with both a long-period three ...
Aicardi, C   +99 more
core   +1 more source

Moho Imaging with Fiber Borehole Strainmeters Based on Ambient Noise Autocorrelation

open access: yesSensors
Moho tomography is important for studying the deep Earth structure and geodynamics, and fiber borehole strainmeters are broadband, low-noise, and attractive tools for seismic observation. Recently, many studies have shown that fiber optic seismic sensors
Guoheng Qi   +4 more
doaj   +1 more source

Temporal Changes of Seismic Velocity Caused by Volcanic Activity at Mt. Etna Revealed by the Autocorrelation of Ambient Seismic Noise

open access: yesFrontiers in Earth Science, 2019
On active volcanoes, ambient noise-based seismic interferometry can be a very useful monitoring tool as it allows to detect very slight variations in seismic velocity associated with magma transported toward the surface.
Raphael S. M. De Plaen   +6 more
doaj   +1 more source

Noise Characteristics and Shallow Subsurface Structure Detection in Coastal Zones: A Case Study from Dong’ao Island, Zhuhai

open access: yesJournal of Marine Science and Engineering
Shallow subsurface structure detection in coastal zones serves as a critical foundation for resource development and engineering construction. However, conventional geophysical methods exhibit significant limitations in land–sea transition zones, where ...
Siqing Liu   +12 more
doaj   +1 more source

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