Results 61 to 70 of about 1,556 (206)

A Multivariate Mixed‐Effects Regression Framework for Ground Motion Modeling: Integrating Parametric and Machine Learning Approaches

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 9, Page 1811-1827, 25 July 2026.
ABSTRACT Multivariate ground motion models (GMMs) that capture the correlation between different intensity measures (IMs) are essential for seismic risk assessment. Conventional GMMs are often developed using a two‐stage approach, where separate univariate models with predefined functional forms are fitted first, and correlation is addressed in a ...
Sayed Mohammad Sajad Hussaini, Shaghayegh Karimzadeh, Paulo B. Lourenço   +2 more
wiley   +1 more source

Shallow Modeling and Site‐Amplification From Telecommunications Fibers in Istanbul

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract We use pre‐existing fiber‐optic telecommunications fibers in Istanbul, Türkiye, to generate a seismic velocity model of the subsurface down to 100 m depth, and estimate site‐amplification in the region. We collect ambient noise, predominantly from urban traffic, along the 8 km segment fiber, extract Rayleigh wave dispersion curves, and use a ...
Daniel Bowden, Ali Shaikhsulaiman, Simon Grieder, Ebru Bozdağ, Ali Özgün Konca, Semih Ergintav, Esra Ertan, Evrim Yavuz, Muhammed Ünlü, Andreas Fichtner   +9 more
wiley   +1 more source

A Deep Learning Framework for Peak Ground Velocity Prediction Using Multi‐Station Velocity Waveforms: The Taiwan Transformer Shaking Alert Model (TT‐SAM)

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract This study proposes a deep‐learning–based regional earthquake early warning model, the Taiwan Transformer Shaking Alert Model (TT‐SAM). The model adopts peak ground velocity (PGV) as its primary ground shaking prediction unit, aiming to better reflect actual structural damage and thereby enhance the practical utility and accuracy of the ...
Yu‐Heng Chen, Chung‐Han Chan, Chieh‐Chen Chang, Kuo‐Fong Ma   +3 more
wiley   +1 more source

Constitutive expression of the active fragment of human vasostatin Vs30 in Pichia pastoris SMD1168H [PDF]

, 2018
"Vasostatin 30 (Vs30) is an active fragment derived from the N-terminal region (135–164 aa) of human calreticulin and has the ability to inhibit angiogenesis.
Velázquez Bernardino, Prisiliana, Calderón Salais, Sergio, Victor E. Balderas-Hernandez, Sergio Calderon-Salais, Antonio De Leon-Rodriguez, Prisiliana Velazquez-Bernardino, Balderas Hernández, Víctor Emmanuel, Barba de la Rosa, Ana Paulina, Ana P. Barba de la Rosa, De León Rodríguez, Antonio   +9 more
core   +1 more source

Mapping of soil vulnerability to earthquake using the HVSR method in microtremor measurements in Marga Agung Area, South Lampung Regency

Indonesian Journal of Innovation and Applied Sciences
This study was conducted in Marga Agung Village, Jati Agung Subdistrict, South Lampung Regency, using the Horizontal to Vertical Spectral Ratio (HVSR) method based on microtremor data.
Fransiska Natalia, Alfi Khoiriyyah, Meta Nisrina Syafitri, Risky Martin Antosia   +3 more
doaj   +1 more source

Integrated VES–ERI–MASW‐Geotechnical Investigation for Building Foundation Site Suitability at the Proposed Wachemo University Referral Hospital, Hosanna, Central Ethiopia

Engineering Reports, Volume 8, Issue 5, May 2026.
Integrated VES, ERI, and MASW surveys, constrained by boreholes, delineate a central low‐resistivity/low‐V s weak corridor and more competent volcanic strata at depth. The eastern sector offers preferable foundation conditions, while identified weak zones require ground improvement or deep foundations to mitigate differential‐settlement risk.
Alemayehu Ayele, Tamrat Eramo, Muralitharan Jothimani   +2 more
wiley   +1 more source

Application of Methods to Characterize VS30 in Alabama [PDF]

, 2022
One of the most important characteristics of a soil that is a basis for seismic analysis, is shear wave velocity (VS). VS has proved to be a valuable tool for site response analysis for seismic design since it has the potential to significantly affect ...
Carcamo, Patricia S.
core  

Regional Adjustments to NGA‐West2 Ground‐Motion Models for Turkey

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 6, Page 1313-1332, May 2026.
ABSTRACT This paper presents a ground‐motion model updating (GMMU) framework to adjust NGA‐West2 models for predicting a set of intensity measures in Turkey, including peak ground acceleration (PGA), peak ground velocity (PGV), and pseudo‐spectral acceleration (PSA) at periods ranging from 0.01 to 10 s. The GMMU framework integrates bias identification
Mao‐Xin Wang, Gang Wang
wiley   +1 more source

Vs30 of Coastal Cities in Eastern Indonesia in the Context of Earthquake Phenomenology

Seismica
Shear wave velocity measurements to 30 m depth (Vs30) using Multichannel Analysis of Surface Waves (MASW) indicate high seismic risk to the built environment in coastal cities adjacent to the Sunda and Banda subduction zones in Eastern Indonesia.
Claire Ashcraft, Ron Harris, Julian Fretha, Abby Mangam, John McBride, Carolus Prasetyadi, Kevin Rey, Shayna Orme, Hanif Sulaeman, Diannitta Agustinawati, Bryce Berrett, Rachel Willmore, Ethan Westfall, Ian Bell, Giovani Cynthia Pradipta, Emma Baginski   +15 more
doaj   +1 more source

A Comparative Study on the VS30 and N30 Based Seismic Site Classification in Kahramanmaras, Turkey

Advances in Civil Engineering, 2020
Assessment of seismic site classification (SSC) using either the average shear wave velocity (VS30) or the average SPT-N values (N30) for upper 30 m in soils is the simplest method to carry out various studies including site response and soil-structure ...
Dalia Munaff Naji, Muge K. Akin, Ali Firat Cabalar   +2 more
doaj   +1 more source