Implementation of the Self Organizing Maps (SOM) Method for Grouping Provinces in Indonesia Based on the Earthquake Disaster Impact

Abstrak

Indonesia is a country prone to earthquakes. This is because the territory of Indonesia is located between the confluence of three tectonic plates (the Eurasian plate, the Indo-Australian plate, and the Pacific Ocean plate) and is also in the Ring of Fire. The number of earthquakes in Indonesia varies in each province due to the different characteristics of the location of the plates of each province in Indonesia. Earthquake disasters have a very detrimental impact on society, such as causing casualties, damaged houses or damage to public facilities. Therefore it is important to grouping the impact of earthquakes in Indonesia as a disaster mitigation effort in order to find out the characteristics of each province in each cluster. The grouping method used is Kohonen Self Organizing Maps (SOM). SOM is a high-dimensional data visualization technique in the form of a low-dimensional map. The results 3 clusters with the characteristics of each cluster. Cluster 1 consisting of 24 provinces has the characteristics of the highest number of earthquake incidents, the number of missing victims, the number of victims suffering and the number of damaged houses. Cluster 2 consisting of 7 provinces does not show any prominent characteristics of the cluster. Cluster 3 consists of 3 provinces with very prominent characteristics, namely the number of victims killed, the number of injured victims, the number of displaced victims, the number of damaged educational facilities, the number of damaged health facilities and the number of damaged worship facilities the most of the other clusters.