Results 61 to 70 of about 6,770 (264)

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

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

open access: yesInternational 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.
A. Ayele, Kifle Woldearegay, M. Meten
semanticscholar   +1 more source

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

open access: yesEarth 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

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

open access: yesGeophysical 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   +9 more
wiley   +1 more source

Application of seismic refraction and MASW methods for investigating the Spillway Fault trace along the western side of the Aswan High Dam, Egypt

open access: yesActa Geodaetica et Geophysica
An earthquake of local magnitude ML = 4.6 occurred on November 7, 2010, 4.5 km northwest of the Aswan High Dam on the Spillway Fault. In the Aswan metropolitan region this earthquake was felt intensely.
Ahmed Hamed   +5 more
semanticscholar   +1 more source

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

open access: yesEarthquake 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   +3 more
wiley   +1 more source

Intersectional impact of multiple identities on social work education in the UK [PDF]

open access: yes, 2017
This document is the Accepted Manuscript version of the following article: Ben Chi-pun Liu, ‘Intersectional impact of multiple identities on social work education in the UK’, Journal of Social Work, Vol 17(2): 226-242, March 2017.
Australian Government   +14 more
core   +2 more sources

Valley of Mexico site response from non‐reference site approach

open access: yesEarthquake Spectra, Volume 41, Issue 2, Page 1029-1059, May 2025.
We present a model for Valley of Mexico site response that is referenced to a 30 m time‐averaged shear wave velocity (VS30) of 760 m/s. This reference condition ensures compatibility with regional ground motion models (GMM) for Central America and Mexico (CAM), which were developed from an expanded version of the NGA‐Subduction (NGA‐Sub) database as ...
Victor Contreras   +3 more
wiley   +1 more source

Establishing Confidence in Surface Wave Determined Soil Profiles [PDF]

open access: yes, 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

Near-surface seismic refraction tomography and MASW for site characterization in Phuentsholing, Bhutan Himalaya

open access: yesSN Applied Sciences, 2021
It is essential to understand the soil characteristics of the subsurface layers for any engineering construction. In difficult terrains like hilly areas, conventional methods of investigation are expensive and difficult to conduct.
Raju Sarkar   +6 more
semanticscholar   +1 more source

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