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Seyed Mehdi Mousavi

Seyed Mehdi Mousavi

Academic rank: Assistant Professor
ORCID:
Education: PhD.
ScopusId: 36806793700
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
Temporal distribution of earthquakes using renewal process in the Dasht-e-Bayaz region
Type
JournalPaper
Keywords
Temporal distribution . Conditional probability. Forecast . Time-dependent model . Seismic hazard
Year
2018
Journal Journal of Seismology
DOI
Researchers Seyed Mehdi Mousavi ، Masoud Salehi

Abstract

Temporal distribution of earthquakes with Mw > 6 in the Dasht-e-Bayaz region, eastern Iran has been investigated using time-dependent models. Based on these types of models, it is assumed that the times between consecutive large earthquakes follow a certain statistical distribution. For this purpose, four timedependent inter-event distributions including the Weibull, Gamma, Lognormal, and the Brownian Passage Time (BPT) are used in this study and the associated parameters are estimated using the method of maximum likelihood estimation. The suitable distribution is selected based on logarithm likelihood function and Bayesian Information Criterion. The probability of the occurrence of the next large earthquake during a specified interval of time was calculated for each model. Then, the concept of conditional probability has been applied to forecast the next major (Mw > 6) earthquake in the site of our interest. The emphasis is on statistical methods which attempt to quantify the probability of an earthquake occurring within a specified time, space, and magnitude windows. According to obtained results, the probability of occurrence of an earthquake with Mw > 6 in the near future is significantly high.