Results 71 to 80 of about 1,556 (206)

Opportunities for the U.S. Geological Survey's National Seismic Hazard Model to Improve Seismic Risk Assessment of Critical Infrastructure

Earthquake Spectra, Volume 42, Issue 2, May 2026.
As fragility and risk modeling techniques and computational capabilities evolve, complemented by moving toward more routine and systematic seismic risk assessment of all buildings and critical infrastructure, the authors pose a few critical questions to investigate how the U.S. Geological Survey (USGS) National Seismic Hazard Models (NSHMs) can be used
Kishor S. Jaiswal, N. Simon Kwong
wiley   +1 more source

Assessing Post‐Earthquake Emergency Healthcare Accessibility Considering Damage to Hospital Buildings and Transportation Infrastructure

Earthquake Spectra, Volume 42, Issue 2, May 2026.
This article presents a framework for performing a regional assessment of the accessibility of emergency healthcare facilities after a major earthquake. Accessibility is assessed by applying the enhanced two‐step floating catchment area method to a regional road network, implemented in ArcGIS.
Kiranjot Kaur, Carlos Molina Hutt, Amy M. Kim   +2 more
wiley   +1 more source

Jeoloji, arazi ve doygunluğu dikkate alan yeni Vs30 tahmin stratejisi: Türkiye uygulamasi

, 2022
Various parameters are used for geotechnical characterization of site conditions. Among them, most widely used one is average shear wave velocity in upper 30 meters (Vs30). So far, many different proxy-based approaches are proposed to predict Vs30 across
Okay, Hakan Bora
core  

Vertical‐Component Seismic Response and System Identification of a 52‐Story High‐Rise Building Using Earthquake Data

Earthquake Spectra, Volume 42, Issue 2, May 2026.
This study investigates the vertical dynamic response of a 52‐story high‐rise building in downtown Los Angeles using small‐magnitude earthquake data recorded by the Community Seismic Network. While seismic design traditionally emphasizes horizontal ground motion, vertical accelerations can have a significant impact on tall structures, leading to ...
Viviana Vela, Farid Ghahari, Monica D. Kohler, German A. Prieto, Ertugrul Taciroglu   +4 more
wiley   +1 more source

Development of Nationwide Vs30 Map and Calibrated Conversion Table for Indonesia using Automated Topographical Classification

, 2017
A nationwide Vs30 map for Indonesia was developed based on automated topographic classification from 90-m grid digital elevation data and their correlation with Vs30.
Munirwansyah, Munirwansyah, Wahdiny, In In, Siska Rustiani, Mikhail, Reguel, Munirwansyah Munirwansyah, Masyhur Irsyam, Muhammad Asrurifak, Reguel Mikhail, Asrurifak, Muhammad, Irsyam, Masyhur, Rustiani, Siska, In In Wahdiny   +11 more
core   +1 more source

Suitability of Ground‐Motion Models for Seismic Hazard Assessments in Puerto Rico and the US Virgin Islands

Earthquake Spectra, Volume 42, Issue 2, May 2026.
We perform linear mixed‐effects analyses with a ground‐motion dataset to evaluate how well ground‐motion models (GMMs) fit active crustal, subduction interface, and subduction intraslab earthquakes in Puerto Rico and the US Virgin Islands. Most of the GMMs reproduce the spatial variation in peak ground motions with earthquake magnitude and rupture ...
Brad T. Aagaard, Morgan P. Moschetti, Kyle B. Withers   +2 more
wiley   +1 more source

Earthquake Hazard Analysis Use Vs30 Data In Palu

Journal of Physics: Conference Series, 2018
Palu City is an area passed by Palu-Koro fault and some small faults around it, causing the Palu of city often hit by earthquake. Therefore, this study is intended to mapped the earthquake hazard zones. Determination of this zone is one of aspect that can be used to reducing risk of earthquake disaster.
Muhammad Rusydi, Rustan Efendi, null Sandra, null Rahmawati   +3 more
openaire   +1 more source

A Vs30 Map for New Zealand based on Geology, Topographic Slope and Direct Measurements [PDF]

, 2017
Motivation Vs30 (the time-averaged shear wave velocity in the uppermost 30 metres of a given location) is an important engineering parameter used in research and practice. Vs30 is not straightforward or inexpensive to measure directly. Mapping Vs30 as a
Bradley, Brendon, Wotherspoon, Liam, Foster, Kevin, McGann, Christopher   +3 more
core  

OpenAmp: An Open‐Source Site Amplification Database to Unlock the Potential of Machine Learning

Earthquake Spectra, Volume 42, Issue 2, May 2026.
OpenAmp is an open‐source, consistently curated, high‐quality database of earthquake site amplification functions derived from instrumental recordings, accompanied by a comprehensive suite of site metadata, for 1,742 K‐NET and KiK‐net observation sites in Japan.
Chuanbin Zhu, Dong‐youp Kwak, Marco Pilz, Annabel Haendel, Junju Xie, Hiroshi Kawase, Fabrice Cotton   +6 more
wiley   +1 more source

2025 U.S. Geological Survey National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands: Overview of Model and Hazard Results

Earthquake Spectra, Volume 42, Issue 2, May 2026.
The U.S. Geological Survey recently updated the National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI). The first version of the PRVI NSHM was released in 2003, and therefore this 2025 update includes over 20 years of new geologic, geophysical, and engineering data, methods, and models.
Allison M. Shumway, Kevin R. Milner, Peter M. Powers, Morgan P. Moschetti, Jason M. Altekruse, Julie A. Herrick, Andrea L. Llenos, Kyle B. Withers, Edward H. Field, Brad T. Aagaard, Richard W. Briggs, Alexandra E. Hatem, Kirstie L. Haynie, Andrew J. Michael, Jessica A. Thompson Jobe, Kishor S. Jaiswal, Brandon S. Clayton, Nicolas Luco, Mark D. Petersen, Sanaz Rezaeian, Thomas L. Pratt, Yuehua Zeng   +21 more
wiley   +1 more source