Results 61 to 70 of about 525 (177)

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

The 2025 Puerto Rico and Virgin Islands U.S. National Seismic Hazard Model Update: Ground Motion Model Selection and Comparison

Earthquake Spectra, Volume 42, Issue 2, May 2026.
We evaluate, select, and describe the ground‐motion models (GMMs) used in the 2025 update of the U.S. National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI). We identify the most appropriate models that align with GMM selection criteria for use in the PRVI region to improve the accuracy of seismic hazard assessments ...
Kyle B Withers, Morgan P Moschetti, Brad T Aagaard, Peter M Powers, Jason Altekruse, Sanaz Rezaeian   +5 more
wiley   +1 more source

Evaluation of Earthquake‐Induced Slope Displacements in Greater Vancouver Based on Probabilistic Framework and Using NBCC 2020 and EqDisp Code Platform

Earthquake Spectra, Volume 42, Issue 2, May 2026.
Engineers frequently use simplified seismic slope displacement procedures to evaluate the performance of earth structures and natural slopes. Current practices typically adopt Newmark‐type and semi‐empirical seismic displacement prediction models (SDPMs) to estimate the seismic slope displacements (D) based on ground motion intensity measures at a ...
Ali Fallah Yeznabad, Karen Assatourians, Hesham El Naggar, Sheri Molnar   +3 more
wiley   +1 more source

Seismic and GNSS strain-based probabilistic seismic hazard evaluation for northern Chile using DAS Magnitude Scale

Geoenvironmental Disasters
Background Probabilistic Seismic Hazard Assessment (PSHA) is a leading methodology for determining key ground motion parameters such as Peak Ground Acceleration (PGA) and spectral acceleration (SA), essential for structural design.
Ranjit Das, Claudio Meneses, Hua Wang
doaj   +1 more source

Empirical Scaling Relationships Between Fault Length and Throw‐Rates Modulated by Fault Interactions in Extensional Regimes

Tectonics, Volume 45, Issue 5, May 2026.
Abstract Throw rates of active faults are expected to scale with fault length because the geometric moment of a fault is directly related to its dimensions. However, empirical data sets commonly display substantial scatter, which limits the use of fault scaling relationships for seismic hazard assessment and for understanding the mechanics of ...
M. Meschis, Z. K. Mildon, G. P. Roberts, C. Sgambato, F. Livio, A. M. Michetti, J. Robertson, J. Faure Walker, F. Iezzi, A. Gattuso, M. D. Barberio, P. Randazzo, A. Caracausi   +12 more
wiley   +1 more source

Comparative Study of Seismic Hazard Analysis Using Classical PSHA and PSHA Method in Java Island, Indonesia

Indonesian Journal on Geoscience
In general, seismic hazard analysis is conducted using a probabilistic approach (PSHA), whilst seismic risk analysis is computed using a stochastic approach. To figur out more differences between the two methods, a comparative study of those two approaches needs to be conducted.
Garup Lambang Goro, Masyhur Irsyam, Irwan Meilano, M. Asrurifak   +3 more
openaire   +1 more source

Modular Pressure Redistribution Cushion with Proprioceptive Soft–Rigid Hybrid Actuator

Advanced Intelligent Systems
Pressure ulcers, which can result from prolonged sitting, pose a significant challenge for wheelchair users. Soft robotics has considerable potential in preventing pressure ulcers. However, current soft robotics, constructed from flexible materials, face
Guangshuai Peng, Lizhen Wang, Shan Tian, Yubo Fan   +3 more
doaj   +1 more source

Near-Field PSHA with Directivity – Dorud

Annals of Geophysics
This study investigates the probabilistic seismic hazard in Dorud city, located near the active Dorud fault, with a specific focus on incorporating near-field and rupture directivity effects into the hazard modeling framework. Near-field ground motions – particularly those influenced by rupture directivity – can generate long-period velocity pulses ...
Maleki, Behzad, Safavi, Sayeh, Najaftomraei, Mohammadreza, Rahimi, Habib   +3 more
openaire   +1 more source

Probabilistic seismic hazard assessment for the United Arab Emirates using integrated seismic source model

Journal of Asian Earth Sciences: X
This study emphasizes the role of active faults as seismogenic sources in probabilistic seismic hazard assessments (PSHA) in the United Arab Emirates (UAE).
Samer A. Barakat, Mohamed G. Arab, Raghad A. Awad, Dima A. Husein Malkawi, Abdulrahman Metawa, Maher Omar   +5 more
doaj   +1 more source

Analysis of epistemic uncertainty associated with GMPEs and their weight within the logic tree for PSHA: Application to Taiwan

Terrestrial, Atmospheric and Oceanic Sciences, 2018
In probabilistic seismic hazard analysis (PSHA), the standard practice is to select a set of appropriate ground motion prediction equations (GMPEs) and assign weights on the logic tree, especially for regions where strong motion data are sparse and where
Van-Bang Phung, Chin-Hsiung Loh, Shu-Hsien Chao, Norman A. Abrahamson   +3 more
doaj   +1 more source