A Global Assessment of Historical and Future Tsunami Hazards based on Seismic Records over the last 400 years

Abstract

 An assessment of tsunami hazard and risk on global scale is important as it can be non-structual measure to increase awareness of coastal residents against tsunami hazards in their locations. However, there are still less number of studies that were focusing on tsunami hazards across the ocean. Therefore, representative cases of tsunamigenic earthquakes were selected based on seismic records over the last 400 years. For each events, distribution of maximum wave amplitudes and arrival times were calculated using tsuanmi numerical analysis in the global scale. In addition, future tsunami hazard assessment was also performed based on the seismic gap. A necessity of assessing both historical and future tsunami hazards in the global scale is then represented in terms of hazard map comparing both scenarios in the global scale.