ESTIMATION OF DIRECT LOSS BASED ON DAMAGE IMPACT AND HAZARD LEVEL IN JAVA ISLAND

• Main Author: Diva Lendra, Nazhel
• Format: Final Project
• Language: Indonesia
• Subjects: Ekonomi tanah & energi
• Online Access: https://digilib.itb.ac.id/gdl/view/82105
• Institution: Institut Teknologi Bandung

The geographic location and large population make Java Island a disaster-prone area with various threats, including earthquakes, landslides, floods, and volcanic eruptions. Based on historical data, these four types of disasters caused economic losses of Rp395.050.291.044.408,00 in the last 40 years. Therefore, calculating potential losses due to these four disasters is an important thing to do to avoid sustainable economic losses in the future. The type of loss that will be discussed specifically in this project is a direct loss. The process of calculating losses begins by collecting disaster risk maps to determine the risk index parameters. Then, the process continues by identifying the building taxonomy structure using the GED4ALL Building Taxonomy method, which has been simplified for the observation parameters. The threat index data and building taxonomic structure obtained will be used as variables in the equation for calculating the risk of direct loss due to disasters using the Damage and Loss Assessment (DaLA) method. In the final step, the data and information obtained from the three previous processes will be presented in a WebGIS-based dashboard. The results of loss risk calculations show that earthquake disasters have the highest loss potential with a total loss value of Rp195.322.940.153.487,00, followed by landslides and floods with a total loss value of Rp117.043.904.494.640,00 and Rp12.329.442.055.227,00. The lowest potential loss is shown by the type of volcanic eruption disaster, with a total loss value of Rp68.006.471.074,00. Overall, the main outputs produced in this project can be used for further processes in the disaster risk management system, especially at the risk analysis and evaluation step.