Results 191 to 200 of about 2,100,958 (324)

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

Juxtaposed slab dehydration, decarbonation and seismotectonic variation beneath the Philippine subduction zone based on 3-D modeling. [PDF]

Sci Rep
Zhu Y, Ji Y, Zhu W, Qu R, Faheem H, Xie C.   +5 more
europepmc   +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

Short-Term Foreshocks as Key Information for Mainshock Timing and Rupture: The M_w6.8 25 October 2018 Zakynthos Earthquake, Hellenic Subduction Zone. [PDF]

Sensors (Basel), 2020
Papadopoulos GA, Agalos A, Minadakis G, Triantafyllou I, Krassakis P.   +4 more
europepmc   +1 more source

Ground‐Motion Characterization for the 2025 U.S. National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands

Earthquake Spectra, Volume 42, Issue 2, May 2026.
We develop the ground‐motion characterization (GMC) for the 2025 U.S. National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands (NSHM‐PRVI) for earthquakes in active crustal, subduction interface, and subduction intraslab regimes. Using ground‐motion models (GMMs) from the Next‐Generation Attenuation (NGA)‐West2 and NGA‐Subduction ...
Morgan P. Moschetti, Brad T. Aagaard, Kyle B. Withers, Kevin Milner, Jason Altekruse, Julie Herrick, Peter M. Powers, Sanaz Rezaeian, Allison M. Shumway, William Stephenson   +9 more
wiley   +1 more source

Different earthquake nucleation conditions revealed by stress drop and b-value mapping in the northern Chilean subduction zone. [PDF]

Sci Rep
Folesky J.
europepmc   +1 more source

A Simple Model to Relate the Elastic Ratio Gamma of a Critically Self-Organized Spring-Block Model with the Age of a Lithospheric Downgoing Plate in a Subduction Zone. [PDF]

Entropy (Basel), 2020
Perez-Oregon J, Muñoz-Diosdado A, Rudolf-Navarro AH, Angulo-Brown F.   +3 more
europepmc   +1 more source

A Calcium-in-Olivine Geohygrometer and its Application to Subduction Zone Magmatism

, 2016
M. Gavrilenko, C. Herzberg, C. Vidito, M. J. Carr, T. Tenner, A. Ozerov   +5 more
semanticscholar   +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

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