Application of Gumbel I and Monte Carlo methods to assess seismic hazard in and around Pakistan |
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| Authors: | Khaista Rehman Paul W Burton Graeme A Weatherill |
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| Institution: | 1.National Centre of Excellence in Geology,University of Peshawar,Peshawar,Pakistan;2.School of Environmental Sciences,University of East Anglia,Norwich,UK;3.GeoForschungsZentrum (GFZ),Potsdam,Germany |
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| Abstract: | A proper assessment of seismic hazard is of considerable importance in order to achieve suitable building construction criteria. This paper presents probabilistic seismic hazard assessment in and around Pakistan (23° N–39° N; 59° E–80° E) in terms of peak ground acceleration (PGA). Ground motion is calculated in terms of PGA for a return period of 475 years using a seismogenic-free zone method of Gumbel’s first asymptotic distribution of extreme values and Monte Carlo simulation. Appropriate attenuation relations of universal and local types have been used in this study. The results show that for many parts of Pakistan, the expected seismic hazard is relatively comparable with the level specified in the existing PGA maps. |
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