| Summary: | It is widely known that earthquakes with strike-slip or normal-faulting crustal displacements have generated destructive tsunamis around the world. Many researchers have proposed that the main cause of such events was due to factors not associated with tsunami-seismic parameters. However, the present study examines a correlation between tsunamis generated by strike-slip or normal-faulting earthquake events and their associated two tsunami-seismic parameters, namely the dominant period 𝑇d and the duration of more than 50 seconds, 𝑇50ex of earthquake P-wave, and compares these with tsunami event validity (TEV). Based on this analysis, we confirm a correlation between tsunamis generated by strike- slip or normal-faulting earthquake events with periods 𝑇d × 𝑇50ex≥ 10 s. Thus, we propose that major earthquakes with both strike-slip and normal-fault motions, have the potential to generate more effectively tsunamis when the rupture duration is ≥ 50 seconds and P-wave dominant periods have values of 𝑇d × 𝑇50ex≥ 10s.
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