Results 211 to 220 of about 1,041 (255)
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On Uncertainties in Probabilistic Seismic Hazard Analysis
Earthquake Spectra, 2016Probabilistic seismic hazard analysis (PSHA) is, in essence, a method to deal with uncertainty, the importance of which justifies the use of a formal and rigorous background for its study. Therefore, the purpose of this paper is to contribute to the reflections on how to correctly handle uncertainty in PSHA.
Mario Ordaz, Danny Arroyo
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A new procedure for probabilistic seismic hazard analysis
2011In the Performance-Based Seismic Design framework, the development of an appropriate “Probabilistic Seismic Hazard Analysis” which allows to statistically characterize the seismic input at the site of an engineering project becomes of crucial importance. The objective of the hazard analysis is to compute, for a given site over a given observation time,
GASPARINI, GIADA +2 more
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Probabilistic seismic hazard analysis for Bangalore
Natural Hazards, 2008This article presents the results of probabilistic seismic hazard analysis (PSHA) for Bangalore, South India. Analyses have been carried out considering the seismotectonic parameters of the region covering a radius of 350 km keeping Bangalore as the center. Seismic hazard parameter ‘b’ has been evaluated considering the available earthquake data using (
Anbazhagan, P, Vinod, JS, Sitharam, TG
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Probabilistic seismic hazard analysis for seismic sequences
2013Earthquakes are typically clustered both in space and time. Seismic h azard , expressed in terms of rate of exceedance of a ground motion intensity measure , classically refers to ma i nshock s, which means that such a rate is computed filtering the rate o f occurrence of events of largest magnitude within each cluster of earthquakes.
IERVOLINO, IUNIO +2 more
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Probabilistic Seismic Hazard Analysis for Induced Seismicity
2020In recent times, there has been increased seismicity in geologically stable basins in North America, thought to be associated with hydraulic fracturing and/or waste water disposal activities. Induced events could generate a seismic hazard higher than natural seismicity, particularly in areas with small-to-moderate natural background seismicity, leading
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Some Thoughts on Declustering in Probabilistic Seismic-Hazard Analysis
Bulletin of the Seismological Society of America, 2014Abstract In this paper, we discuss in depth, one of the basic procedures that stands behind probabilistic seismic‐hazard analysis (PSHA), that is, the declustering of the seismicity rates. First, we explore the technical, scientific, and practical motivations that led to introducing the declustering of seismicity rates.
Marzocchi, W., Taroni, M.
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Probabilistic seismic hazard analysis of Kahramanmaras Province, Turkey
Arabian Journal of Geosciences, 2018Kahramanmaras and its surroundings are under the influence of East Anatolian and Dead Sea fault zones which have significance in the tectonics of Turkey. The long-term energy accumulation in these zones creates a very high risk level in terms of seismic hazard. In this study, the seismic hazard of Kahramanmaras Province and its vicinity was tried to be
Sakarya Üniversitesi/Mühendislik Fakültesi/Jeofizik Mühendisliği Bölümü +2 more
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Probabilistic seismic hazard analysis for a site
Nuclear Engineering and Design, 2006Traditionally, the seismic design basis ground motion has been specified by normalised response spectral shapes and peak ground acceleration (PGA). The mean recurrence interval (MRI) used to be computed for PGA only. The present work develops uniform hazard response spectra, i.e., spectra having the same MRI at all frequencies for Tarapur Atomic Power ...
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Probabilistic Seismic Hazard Analysis Code Verification
PEER Reports, 2018Over the past decade, the use of Probabilistic Seismic Hazard Analysis (PSHA) to assess seismic hazards has expanded, leading to the creation of a number of new PSHA computer codes throughout the industry. Additionally, recent seismic source and ground-motion characterization studies have led to more complex source and ground-motion models, which ...
Christie Hale +2 more
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The Hazard in Using Probabilistic Seismic Hazard Analysis for Engineering
Environmental & Engineering Geoscience, 1998Both the deterministic and probabilistic methods of seismic hazard analysis serve necessary purposes. Probability is needed to obtain operating basis earthquakes, to perform risk analyses, to prioritize projects, and for assigning recurrence estimates to deterministic earthquakes.
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