3D MAPPING POTENTIAL TSUNAMI INUNDATION TO ANALYZE VULNERABILITY OF AFFECTED BUILDINGS IN PANGGARANGAN COASTAL AREA, LEBAK REGENCY

• Main Author: Aulia Syamsu, Adib
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/70849
• Institution: Institut Teknologi Bandung

Tsunamis are unpredictable and rare disasters but have the potential to become destructive natural disasters. The energy from tsunami waves can destroy almost any object, such as plants, animals, or buildings. The vulnerability analysis of the building is needed to obtain a proper understanding of the estimated damage that can be caused by the tsunami disaster. The tsunami hazard analysis was carried out through a quantitative numerical tsunami modeling approach wherein the inundation model was reconstructed into a 3D city model with LOD1 and LOD2 details. Furthermore, an assessment of the vulnerability of the building is carried out that can provide information on potential damage, one of which is using the Papathoma Tsunami Vulnerability Assessment Model 4th edition (PTVA-4). The assessment of building attributes in this study was carried out by interpreting aerial photo data, Google Earth Street View, and field surveys to obtain information on building characteristics. The results obtained are the maximum height of tsunami inundation against buildings is 7,53 meters, 36 or 9,6% of buildings are classified as very high vulnerability, 17 or 4,54% of buildings are high vulnerability, 27 or 7,21% of buildings are medium vulnerability, 87 or 23.26% of buildings are classified as low vulnerability, and 207 or 55,34% of buildings classified as very low vulnerability.