This research is aimed to alocate land management and use coastal and ocean area Sub-Province base on digital through Geographical Information System (GIS). This research was done in the coastal area Kota Bengkulu, through spatial alocate analysis and land suitability analysis for brackish water fish ponds, maritime tourism and conservation areas. Approach used in this research is spatial analysis to parameter/variable and land suitability criteria consist of element abiotik, biotik, culture, and spatial use (RTRW). Land suitability analysis is done by using SIG through overlay technique. Result of research indicate that from 7 sub district of coastal area of exist in Kota Bengkulu, land suitability (S1) for brackish water fish ponds are found in sub-district Muara Bangkahulu and Kampung Melayu. Land suitability (S1) for the maritime tourism are found in sub-district Teluk Segara and Ratu Samban, while Land suitability (S1) for conservation area of are found in sub-district Kampung Melayu.

This research aims to design a tsunami hazard zone with the scenario of tsunami run-up height variation based on land use, slope and distance from the shoreline. The method used in this research is spatial modelling with GIS via Ordinary Kriging interpolation technique. Kriging interpolation method that is the best in this study is shown by Circular Kriging method with good semivariogram and RMSE values which are small compared to other RMSE kriging methods. The results shows that the area affected by the tsunami inundation run-up height, slope and land use. In the run-up to 30 meters, flooded areas are about 3,148.99 hectares or 20.7% of the total area of the city of Bengkulu. Keywords: run up tsunami, inundation, kriging AbstrakPenelitian ini bertujuan merancang zonasi bahaya bencana tsunami dengan skenario variasi ketinggian run up tsunami yang didasarkan pada penggunaan lahan, lereng dan jarak dari garis pantai. Metode yang digunakan dalam penelitian ini adalah pemodelan spasial dengan GIS melalui teknik interpolasi Ordinary Kriging. Metode interpolasi Kriging yang terbaik dalam penelitian ini adalah metode Kriging Circular yang ditunjukkan dengan semivariogram yang baik dan memiliki nilai RMSE yang kecil dibanding dengan RMSE metode kriging yang lain. Hasil penelitian menunjukkan bahwa luas inundasi tsunami dipengaruhi oleh ketinggian run-up, lereng dan penggunaan lahan. Pada run-up 30 meter wilayah yang tergenang seluas 3.148,99 hektar atau 20,7 % dari seluruh luas Kota Bengkulu.Kata kunci: run up tsunami, genangan, kriging

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Bengkulu Province is classified as a province that is very prone to earthquakes and tsunamis. In order to minimize the impact of the tsunami hazard, preparedness to mitigate the tsunami hazard is needed. One of the ways is by providing information about the optimal evacuation route, assembly points and evacuation shelter buildings (ESB) and ESB capacity. The purpose of this study is to obtain an optimal evacuation route model to minimize the impact of the tsunami hazard in Teluk Segara District, Bengkulu City. The determination of the minimum evacuation route using the Floyd Warshall algorithm based on the minimum time of evacuation. In determining the minimum evacuation time, several factors are considered i.e. road width, road density, road capacity, walking speed of evacuees and group walking speed. This research produces the horizontal and vertical tsunami evacuation routes equipped with ESB capacities.