Analysis of Earthquake Activity in Indonesia by Clustering Method

Adi Jufriansah, Yudhiakto Pramudya, Azmi Khusnani, Sabarudin Saputra

Abstract

Indonesia is an area where three large tectonic plates meet, namely the Indo-Australian, Eurasian and Pacific plates, so that Indonesia is included in the earthquake-prone category, with 11,660 earthquake vibrations identified in the Meteorology, Climatology and Geophysics Agency (BMKG) database in 2019 The purpose of this study is to develop a classification of the distribution of earthquakes in Indonesia in 2019 based on the values of magnitude, depth, and position. This research was conducted by using the clustering method based on the K-means algorithm and the DBSCAN algorithm as a comparison. The results of the clustering show that the earthquake data analysis using the K-Means algorithm is superior with a silhouette index value of 0.837, while the DBSCAN algorithm has a silhouette index value of 0.730.

Keywords

earthquake; clustering method; K-means; DBSCAN; BMKG

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DOI: https://doi.org/10.20961/jphystheor-appl.v5i2.59133

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