Correlação de longa-duração e analíse bayesiana da evolução temporal dos terremotos ao longo da falha de samambaia, nordeste do brasil

A Bayesian approach is adopted to analyze the sequence of seismic events and their magnitudes near João Câmara which occurred mainly from 1983 to 1998 along the Samambaia fault. In this work, we choose a Bayesian model for the process of occurrence times conditional on the observed magnitude values...

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Bibliographic Details
Published inarXiv.org
Main Authors de Freitas, D B, França, G S, Pereira, L L S, Pedro, L S, Atanazio, M G N, Vilar, C S
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 20.06.2013
Subjects
Algorithms
Bayesian analysis
Mathematical models
Parameters
Seismic activity
Seismic analysis
Brazil
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Summary:A Bayesian approach is adopted to analyze the sequence of seismic events and their magnitudes near João Câmara which occurred mainly from 1983 to 1998 along the Samambaia fault. In this work, we choose a Bayesian model for the process of occurrence times conditional on the observed magnitude values following the same procedure suggested by Stavrakakis and Tselentis (1987). The model parameters are determined on the basis of historical and physical information. We generate posterior samples from the joint posterior distribution of the model parameters by using a variant of the Metropolis-Hastings algorithm. We use the results in a variety of ways, including the construction of pointwise posterior confidence bands for the conditional intensity of the point process as a function of time, as well as, a posterior distribuition as a function of the mean of occurrence per unit time.
ISSN:2331-8422