Methodological analysis for the tsunami warning system in the Makran Sea

The present study is an attempt to investigate a technique used for tsunami warning in advance. In this study, the available data on the physical parameters of seawater in the Arabian Sea and the Oman Sea were analyzed. The potential spatial and temporal variability of the Sound Fixing and Ranging (SOFAR) resulting from various phenomena such as wind, surface currents, interior currents, sed i mentation were assessed. Therefore, we investigated the possibility of seismic noise transmission in SOFAR channel. Finally, the sound signal’s travel time was calculated and compared with the arrival time of a potential tsunami. The methodology was the identification of a sloping SOFAR channel in the study area, calculation of the travel time of underwater earthquakeinduced sound in the channel, and comparison of the results with the time of the occurrence of a real tsunami in the region. The sound travel time is one seventh of the travel time of an earthquakegenerated tsunami.