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Yamazaki
Latest Past Events
Seminar: Tsunami Generation Mechanism of Historical Hawaii Local Tsunamis
Zoom Meeting ID______ 935 9608 7383 Passcode: OREseminarDr. Yoshiki Yamazaki Assistant Researcher Department of Ocean & Resources Engineering University of Hawai’i at Mānoa The 4 May 2018 MW 6.9 earthquake offshore of Kilauea Volcano at Hawaii Island has raised concern to emergency management agencies in Hawaii because of locally generated tsunami’s short arrival time and unpredictable amplitude along the Hawaiian Islands. Fortunately, the tsunami impact of the 2018 MW 6.9 earthquake was moderate over the entire Hawaii island chain. However, Hawaii experienced two larger earthquakes in recorded history, the 1975 MW 7.7 Kalapana and 1868 M ~7.9 Ka`u earthquakes at the south flank of Hawaii Island.
Seminar: Numerical Modeling of Flood Hazards from Tsunamis and Hurricanes
Marine Science Building 114 1000 Pope Road, HonoluluYoshiki Yamazaki, Ph.D. Post-doctoral Research Fellow Department of Ocean and Resources Engineering The low-lying coastal communities of Hawaii are vulnerable to flooding from tsunamis and hurricanes. In particular, Hawaii was hit by six destructive tsunamis generated by subduction earthquakes during the last 100 years. Accurate prediction of tsunami impacts is crucial for mitigation planning and emergency response. We have developed the shock-capturing, dispersive wave model, NEOWAVE (Non-hydrostatic Evolution of Ocean WAVEs), which includes a two-way nesting scheme of telescopic grids to describe tsunami generation, propagation, and inundation in a single computation. The main motivation for the development is to have