Results 11 to 20 of about 2,342 (198)

Uncertainty in PSHA related to the parametrization of historical intensity data [PDF]

Natural Hazards and Earth System Sciences, 2014
In recent times a great deal of research aimed to reduce of uncertainties in probabilistic seismic hazard analysis (PSHA). Most attention was paid to the role of ground motion prediction equations (GMPEs; see, e.g., Strasser et al., 2009), while no ...
M. Mucciarelli
doaj   +3 more sources

The effect of directivity in a PSHA framework [PDF]

Geophysical Journal International, 2012
We propose a method to introduce a refined representation of the ground motion in the framework of the Probabilistic Seismic Hazard Analysis (PSHA). This study is especially oriented to the incorporation of a priori information about source parameters ...
E. Spagnuolo, A. Herrero, G. Cultrera
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ANALISIS PENDUGAAN BAHAYA KEGEMPAAN DI BATUAN DASAR UNTUK WILAYAH LAMPUNG MENGGUNAKAN METODE PSHA [PDF]

JGE, 2020
Analysis of seismic hazard estimation is one method for estimating the effect of earthquakes. The purpose of this study was to determine the maximum value of ground acceleration in bedrock or PGA values for the Lampung Province region.
Mhd Azri Pangaribuan, Syamsurijal Rasimeng, Karyanto Karyanto, Rudianto Rudianto   +3 more
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THE ROLE OF UNCERTAINTY OF MODEL PARAMETERS IN PSHA

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2015), 2019
Current approaches for the seismic hazard assessment, are mainly based on the classical formulation of the probabilistic seismic hazard analysis, widely known with the acronym PSHA. This procedure is able to compute the annual rate of exceedance of a set of ground motion intensity measures at a site of interest.
Hofer L., Zanini M. A.
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SIMULATION-BASED PSHA FOR THE KATHMANDU VALLEY: SENSITIVITY TO HYPOCENTRE RANDOMISATION [PDF]

, 2020
This paper presents a sensitivity study of simulation-based Probabilistic Seismic Hazard Analysis (PSHA) for Kathmandu, Nepal. Two aspects are investigated in detail: (i) the technique for simulating fault ruptures compatible with scaling laws and fitting into the Main Himalayan Trust (MHT) and (ii) the choice of different Ground Motion Prediction ...
De Risi, Raffaele, Wang, Shaoqing, Werner, Max, De Luca, Flavia, Vardanega, Paul J, Pokhrel, Rama, Maskey, Prem, Sextos, Anastasios   +7 more
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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
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Simulation-based PSHA for the Kathmandu Basin in Nepal [PDF]

, 2019
Reliable probabilistic seismic hazard analysis (PSHA) for Nepal is a long-term goal that different researchers have been working on in the last decade. Especially after the 2015 Gorkha earthquake, several classical probabilistic seismic hazard analysis studies have been carried out for the entire Nepal.
Pokhrel, Rama, De Risi, Raffaele, Werner, Maximilian, De Luca, Flavia, Vardanega, Paul, Maskey, Prem, Sextos, Anastasios   +6 more
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An investigation of PSHA sensitivity with focus on Finland

, 2022
We describe the SENSEI project conducted on the initiative of STUK, the Radiation and Nuclear safety Authority of Finland. The project aimed at exploring the sensitivity of probabilistic seismic hazard outputs to different choices of input parameters, based on the seismicity data available in Finland.
Mäntyniemi, Päivi, Malm, Marianne, Toro, Gabriel, Crespo, María J., Schmitt, Timo, Burck, Simon, Välikangas, Pekka, Fülöp, Ludovic   +8 more
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Accounting for Epistemic Uncertainty in PSHA: Logic Tree and Ensemble Modeling

Bulletin of the Seismological Society of America, 2015
Abstract Any trustworthy probabilistic seismic‐hazard analysis (PSHA) has to account for the intrinsic variability of the system (aleatory variability) and the limited knowledge of the system itself (epistemic uncertainty). The most popular framework for this purpose is the logic tree.
Marzocchi, W., Taroni, M., Selva, J.
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How different PSHA is different enough?

Probabilistic seismic hazard analysis (PSHA) is widely employed worldwide as the rational way to quantify the uncertainty associated to earthquake occurrence and effects. National-scale PSHA has its results typically expressed in the form of maps of ground motion measures intensities that all have the same exceedance return period.
Iervolino I.
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