Bayesian probabilities for occurrence of large earthquakes in the seismogenic sources of Japan and Phillipine during the period 1998-2017

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Published: Jan 1, 2001
DOI: https://doi.org/10.12681/bgsg.17271
Keywords:
Bayesian probability occurrence of earthquakes seismic hazard curves Japan Phillipine
T. M. TSAPANOS
Aristotle University of Thessaloniki, School of Geology, Geophysical Laboratory
O. CH. GALANIS
Aristotle University of Thessaloniki, School of Geology, Geophysical Laboratory
S. D. MAVRIDOU
Aristotle University of Thessaloniki, School of Geology, Geophysical Laboratory
M. P. HELMl
Aristotle University of Thessaloniki, School of Geology, Geophysical Laboratory
Abstract

The Bayesian statistics is adopted in 11 seismic sources of Japan and 14 of Philippine in order to estimate the probabilities of occurrence of large future earthquakes, assuming that earthquakes occurrence follows the Poisson distribution. The Bayesian approach applied represents the probability that a certain cut-off magnitude (or larger) will exceed in a given time interval of 20 years, that is 1998-2017. This cut-off magnitude is chosen the one with M=7.0 or greater. In this case we can consider these obtained probabilities as a seismic hazard presentation. More over curves are produced which present the fluctuation of the seismic hazard between these seismic sources. These graphs of varying probability are useful either for engineering or other practical purposes

Article Details
  • Section
  • Seismology
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