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The Bayesian Probabilistic Earthquake Hazard Assessment in the North-East Indian Peninsula

IR@C-MMACS: CSIR-Centre for Mathematical Modelling and Computer Simulation, Bangalore

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Title The Bayesian Probabilistic Earthquake Hazard Assessment in the North-East Indian Peninsula
 
Creator Parvez, Imtiyaz A
 
Subject Computational Seismology
 
Description The Bayesian extreme-value distribution of earthquake occurrences has been used to estimate the seismic hazard in twelve seismogenic zones of the North-East Indian peninsula. This tool has been used very efficiently to combine the prior information of seismicity obtained from geological data with historical observations in many seismogenic zones of the world. The basic parameters to obtain the prior estimates of seismicity are the seismic moment, slip rate, earthquake recurrence rate and magnitude. These estimates are then updated in terms of Bayes’ theorem and historical estimates of seismicity associated with each zone. From the Bayesian analysis of extreme earthquake occurrences for North-East Indian peninsula, it is found that for T=5 years, the probability of occurrences of magnitude (Mw=5.0-5.5) is more than 0.9 for all zones. For Mw=6.0, four zones exhibit very high probabilities namely Z1 (Central Himalayas), Z5 (Indo-Burma border), Z7 (Burmese arc) and Z8 (Burma region) exhibit high probabilities. Lower probability is shown by some zones namely Z4, Z12, and rest of the zones Z2, Z3, Z6, Z9, Z10 and Z11 show moderate probabilities.
 
Publisher CSIR Centre for Mathematical Modelling and Computer Simulation
 
Date 2003-01
 
Type Monograph
NonPeerReviewed
 
Format application/pdf
 
Identifier http://cir.cmmacs.ernet.in/200/1/rrcm0301new.pdf
Parvez, Imtiyaz A (2003) The Bayesian Probabilistic Earthquake Hazard Assessment in the North-East Indian Peninsula. Technical Report. CSIR Centre for Mathematical Modelling and Computer Simulation, C-MMACS,Bangalore 560037,India. (Unpublished)
 
Relation http://cir.cmmacs.ernet.in/200/