Tsunami Mitigation Strategy at Watu Ulo Beach Based on Numerical Modeling Using Delft3D-Flow

The coastal area of Watu Ulo Beach in Jember has great resource potential but also the for major disasters, such as a tsunami. Tsunamis can cause casualties and destroy buildings. Thus, it is important to assess possibility future tsunami disasters. This study aims simulate at using Delft3D-Flow analyze affected areas. modeling based on two simulations, namely Scenario 1 model validation characteristics 1994 Banyuwangi earthquake. Model calculation uses MAPE method <10%. 2, southern Java megathrust earthquake, was analyzed obtain time wave height well run-up inundation, visualizing by Beach. simulation results show that reached 12.57 m with travel 29 minutes. elevation 9.21 m, inundation distance 2.38 km from coastline, indicating caused substantial damage. As an tsunami, Sumberejo Village 634.68 ha, Sabrang 250.03 ha. temporary evacuation location set Tanjung Papuma Street via shortest route 0.57 assembly point. Based this be used reference determining routes locations disaster mitigation