Results 51 to 60 of about 1,697 (196)

Velocity model estimated from seismic refraction survey and MASW, at Flamengos site (Faial island, Azores) [PDF]

, 2014
The aim of this communication is to present the velocity models of propagation of seismic waves P and S using geophysical methods, such as refraction surveys and MASW (Multichannel analysis of surface waves).
Bezzeghoud, Mourad, Borges, José Fernando, Caldeira, B., Casacão, J., Neves, S.   +4 more
core  

Evaluating Seismic Ambient Noise Techniques for Detecting Ice‐Bearing Rocks on the Moon

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract One of the primary objectives of upcoming lunar missions is to locate ice‐bearing rocks at the South Pole. While evidence for their presence exists, the exact distribution and quantity remain uncertain. In this study, we evaluate the potential of seismic ambient noise techniques—including seismic interferometry, H/V spectral ratios ...
S. Keil, M. Schimmel, H. Igel
wiley   +1 more source

Ground-Motion Observations at Hotel Montana during the M 7.0 2010 Haiti Earthquake: Topography or Soil Amplification? [PDF]

, 2013
Unusually severe structural damage was reported during the 2010 M 7.0 Haiti earthquake in the vicinity of Hotel Montana, located on top of a ridge in the district of Pétionville. Prompted by the observations, U.S.
Assimaki, D., Jeong, S.
core   +1 more source

Multichannel Analysis of Surface Waves (MASW) to Estimate the Shear Wave Velocity for Engineering Characterization of Soils at Hawassa Town, Southern Ethiopia

International Journal of Geophysics, 2022
Site characterization is a prerequisite for the successful and economic design of engineering structures and earthworks by providing geological information for any proposed project. Until now, no detail study has been carried out on the site characterization and classification using shear wave velocity (Vs) up to the top 30 m depth in Hawassa town. For
Alemayehu Ayele, Kifle Woldearegay, Matebie Meten   +2 more
openaire   +2 more sources

Neural Machine Translation of Seismic Ambient Noise for Soil Nature and Water Saturation Characterization

Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.
Abstract Soil nature and water saturation of the near‐surface directly influence land use resilience and sustainability in urban areas facing intense climate forcing and human activity. Seismic methods are widely applied in this context for subsurface characterization and monitoring, but often fall short in delivering joint geological, hydrogeological,
José Cunha Teixeira, Ludovic Bodet, Agnès Rivière, Santiago G. Solazzi, Amélie Hallier, Alexandrine Gesret, Sanae El Janyani, Marine Dangeard, Amine Dhemaied, Joséphine Boisson Gaboriau   +9 more
wiley   +1 more source

Assessing climate effects on railway earthworks Using MASW [PDF]

, 2014
Many parts of the UK’s rail network were constructed in the mid‐19th century long before the advent of modern construction standards. Historic levels of low investment, poor maintenance strategies and the deleterious effects of climate change have ...
Bergamo, P., Chambers, J.E., Dashwood, B., Donohue, S., Gunn, D.A., Hughes, E., Uhlemann, S., Ward, D.   +7 more
core   +2 more sources

A frequency‐domain beamforming procedure for extracting Rayleigh wave attenuation coefficients and small‐strain damping ratio from 2D ambient noise array measurements

Earthquake Spectra, Volume 41, Issue 2, Page 1333-1363, May 2025.
The small‐strain damping ratio plays a crucial role in assessing the response of soil deposits to earthquake‐induced ground motions and general dynamic loading. The damping ratio can theoretically be inverted for after extracting frequency‐dependent Rayleigh wave attenuation coefficients from wavefields collected during surface wave testing.
Aser Abbas, Mauro Aimar, Brady R Cox, Sebastiano Foti   +3 more
wiley   +1 more source

Establishing Confidence in Surface Wave Determined Soil Profiles [PDF]

, 2011
Surface waves can be used to determine the shear velocity profile from the ground surface to some depth limited by the spectral band of the seismic source. A number of factors influence the uncertainties of the determined profile.
Michaels, Paul
core   +2 more sources

Multi‐Scale Geophysical Imaging of a Hydrothermal System in Yellowstone National Park, USA

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Little is known about the local plumbing systems that fuel Yellowstone's famous hot springs, geysers and mud pots. A multi‐method, multi‐scale geophysical investigation was carried out in the Obsidian Pool Thermal Area (OPTA) to: (a) delineate the lateral extent of the hydrothermal area and associated surface features; (b) estimate the ...
Sylvain Pasquet, W. Steven Holbrook, Bradley J. Carr, Neil Terry, Martin A. Briggs, Carol A. Finn, Paul A. Bedrosian, Esben Auken, Jesper Pedersen, Pradip Maurya, Kenneth W. W. Sims   +10 more
wiley   +1 more source

Integrated Seismic Survey for Detecting Landslide Effects on High Speed Rail Line at Istanbul–Turkey

Open Geosciences, 2016
In this study, Multichannel Analysis of Surface Waves Method (MASW), seismic refraction tomography and seismic reflection methods are used together at Silivri district in Istanbul – a district with a landslide problem because of the high speed rail line ...
Grit Mert, Kanli Ali Ismet
doaj   +1 more source