Spatial Planning Policy in Kayangan District, North Lombok After the 2018 Lombok Earthquake Series

Abstract

A series of earthquakes that occurred in Lombok in 2018 caused casualties ranging from minor injuries to fatalities. It also has been found the severe damage to infrastructure such as houses, schools and roads. Kayangan District, North Lombok which is very close to the source of the earthquake in terms of the back arc thrust zone on the north side. The existence of the earthquake source is important to be studied in more detail so that the potential of earthquake hazards can be mapped. This study was conducted with the aim of providing input in the form of post-earthquake spatial planning policies based on the intensity of the earthquake validated to the damage found in the field. Secondary data will then be analyzed together with primary data which is directly obtained using the microtremor measurement method at 47 sample points. Based on the results of the analysis, the spatial distribution of earthquake intensity is on the MMI V to VIII scale. These results are used as the basis for determining the proposed spatial planning policy in the form of a ban on rebuilding infrastructure in the locations that are vulnerable to high landslides and providing location for residential such as permanent housing in areas that are relatively safe from disasters that may occur in the future.