Madlazim, Tjipto Prastowo, Muhammad Nurul Fahmi, Dyah Permata Sari, Ella Melianda, Sorja Koesuma
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. © 2021, Tsunami Society. All rights reserved.
Universitas Negeri Surabaya, Surabaya, 60231, Indonesia; Universitas Syiah Kuala, Aceh, Indonesia; Universitas Sebelas Maret, Surakarta, Indonesia
