A Statistical Study of Earthquake Event in Bangladesh

Abstract

Earthquake is an uncertain phenomena, which occurs suddenly in any location in the world that’s why, prediction of its hazardous effect has difficult without statistical study whereas probability of spectral deformation of ground is evaluated by the hypothesis analysis and this distortion disturbs engineering structures, life-lines etc. Therefore, in this study, probable occurrence of seismic acceleration induced spectral ground movement is evaluated by the statistical study for various locations of Bangladesh while five second seismic shock is considered for time series plot of excitations. So, proposed logic is that spectral ground movement has not hampered life-line structures until peak seismic acceleration has reached around one percent of its coordinate value that’s why, two sided hypothesis test is performed to confirm this brief. Rejection of null hypothesis is the strong evidence for the small settlement of ground and also, it indicates less hazard of structures although some amount of damages might be occur during earthquake.