Bayesian inference of empirical ground motion models to pseudo-spectral accelerations of south Iceland seismic zone earthquakes based on informative priors

M Kowsari, T Sonnemann, B Halldorsson… - Soil Dynamics and …, 2020 - Elsevier
The Icelandic strong-motion dataset is relatively small and the largest recorded earthquake
magnitude is M w 6.5, whereas events of around M w 7.0 are known to have occurred in the …

A backbone seismic ground motion model for strike-slip earthquakes in Southwest Iceland and its implications for near-and far-field PSHA

M Kowsari, S Ghasemi, F Bayat… - Bulletin of Earthquake …, 2023 - Springer
The earthquake hazard and seismic risk in Iceland are highest in the Southwest due to the
transform faulting in the South Iceland Seismic Zone (SISZ) and Reykjanes Peninsula …

Frequency-dependent site amplification functions for key geological units in Iceland from a Bayesian hierarchical model for earthquake strong-motions

S Rahpeyma, B Halldorsson, B Hrafnkelsson… - Soil Dynamics and …, 2023 - Elsevier
A fundamental modeling assumption in engineering seismology is that seismic ground
motion is affected by source, propagation path and site effects. Contrary to the first two …

Evaluation of the predictive performance of regional and global ground motion predictive equations against Greek strong motion data

D Sotiriadis, B Margaris - Soil Dynamics and Earthquake Engineering, 2023 - Elsevier
The aim of the present work is to evaluate the Ground Motion Prediction Equations (GMPEs),
applicable in active shallow crustal regions of Greece, for Peak Ground Acceleration (PGA) …

Simultaneous Bayesian estimation of non‐planar fault geometry and spatially‐variable slip

R Dutta, S Jónsson… - Journal of Geophysical …, 2021 - Wiley Online Library
Large earthquakes are usually modeled with simple planar fault surfaces or a combination
of several planar fault segments. However, in general, earthquakes occur on faults that are …

Suitability analysis of ground motion prediction equations for western and central Himalayas and Indo-Gangetic Plains

S Selvan, S Sinha - Journal of Earthquake Engineering, 2024 - Taylor & Francis
Ground motion prediction equations (GMPEs) play a key role in seismic hazard assessment
(SHA). Considering the seismo-tectonic, geophysical, and geotectonic characteristics of a …

Probabilistic lowermost mantle P-wave tomography from hierarchical Hamiltonian Monte Carlo and model parametrization cross-validation

JB Muir, H Tkalčić - Geophysical Journal International, 2020 - academic.oup.com
Bayesian methods, powered by Markov Chain Monte Carlo estimates of posterior densities,
have become a cornerstone of geophysical inverse theory. These methods have special …

Ranking of ground‐motion models (GMMs) for use in probabilistic seismic hazard analysis for Iran based on an independent data set

Z Farajpour, M Kowsari, S Pezeshk… - Bulletin of the …, 2021 - pubs.geoscienceworld.org
We apply three data‐driven selection methods, log‐likelihood (LLH), Euclidean distance‐
based ranking (EDR), and deviance information criterion (DIC), to objectively evaluate the …

A simplified seismicity model of the bookshelf fault system of the Southwest Iceland transform zone

F Bayat, M Kowsari, B Halldorsson - Bulletin of Earthquake Engineering, 2024 - Springer
In Iceland, the most seismically active region in Northern Europe, large earthquakes up
to~\({M} _ {\text {w}}\) 7 repeatedly take place in the two transform zones of the country. Of …

Stochastic Ground‐Motion Simulation of the 2021  5.9 Woods Point Earthquake: Facilitating Local Probabilistic Seismic Hazard Analysis in Australia

Y Tang, P Martin Mai - Bulletin of the Seismological …, 2023 - pubs.geoscienceworld.org
ABSTRACT The 2021 M w 5.9 Woods Point event is the largest onshore earthquake that has
occurred in the recorded history of southeastern Australia since European settlement. To …