Comparative Study of Earthquake Clustering in Indonesia Using K-Medoids, K-Means, DBSCAN, Fuzzy C-Means and K-AP Algorithms

Indonesia’s frequent earthquakes, caused by its position at the convergence of multiple tectonic plates, Indonesia's frequent earthquakes, caused by its position at the convergence of multiple tectonic plates, necessitate precise seismic zone identification to improve disaster preparedness. Thi...

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Main Authors: Nurfidah Dwitiyanti, Siti Ayu Kumala, Shinta Dwi Handayani
Format: Article
Language:English
Published: Ikatan Ahli Informatika Indonesia 2024-12-01
Series:Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi)
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Online Access:https://jurnal.iaii.or.id/index.php/RESTI/article/view/5514
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author Nurfidah Dwitiyanti
Siti Ayu Kumala
Shinta Dwi Handayani
author_facet Nurfidah Dwitiyanti
Siti Ayu Kumala
Shinta Dwi Handayani
author_sort Nurfidah Dwitiyanti
collection DOAJ
description Indonesia’s frequent earthquakes, caused by its position at the convergence of multiple tectonic plates, Indonesia's frequent earthquakes, caused by its position at the convergence of multiple tectonic plates, necessitate precise seismic zone identification to improve disaster preparedness. This research evaluates the effectiveness of five clustering algorithms—K-Medoids, K-Means, DBSCAN, Fuzzy C-Means, and K-Affinity Propagation (K-AP)—for analyzing earthquake data from January 2017 to January 2023. Using a dataset from BMKG encompassing 13,860 seismic events, each algorithm was assessed based on Silhouette Score and Cluster Purity metrics. Results indicated that K-Means provided the best balance, forming six clusters with a Silhouette Score of 0.3245 and Cluster Purity of 0.7366, making it the most suitable for seismic zone analysis. K-Medoids closely followed with a Silhouette Score of 0.3158 and Cluster Purity of 0.7190. Although DBSCAN effectively handled noise, its negative Silhouette values indicated poor clustering quality. Fuzzy C-Means and K-AP underperformed, with K-AP generating an impractically high number of clusters (196) and the lowest Silhouette Score (0.2550). This study offers a novel, comprehensive comparison of clustering algorithms for Indonesian earthquake data, emphasizing a dual-metric evaluation approach. By identifying K-Means as the most effective algorithm, provides valuable insights for disaster mitigation and seismic risk analysis.
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spelling doaj-art-583a8bec48a34df4be615db67bddde0c2025-01-13T03:30:32ZengIkatan Ahli Informatika IndonesiaJurnal RESTI (Rekayasa Sistem dan Teknologi Informasi)2580-07602024-12-018676877810.29207/resti.v8i6.55145514Comparative Study of Earthquake Clustering in Indonesia Using K-Medoids, K-Means, DBSCAN, Fuzzy C-Means and K-AP AlgorithmsNurfidah Dwitiyanti0Siti Ayu Kumala1Shinta Dwi Handayani2Universitas Indraprasta PGRIUniversitas Indraprasta PGRIUniversitas Indraprasta PGRIIndonesia’s frequent earthquakes, caused by its position at the convergence of multiple tectonic plates, Indonesia's frequent earthquakes, caused by its position at the convergence of multiple tectonic plates, necessitate precise seismic zone identification to improve disaster preparedness. This research evaluates the effectiveness of five clustering algorithms—K-Medoids, K-Means, DBSCAN, Fuzzy C-Means, and K-Affinity Propagation (K-AP)—for analyzing earthquake data from January 2017 to January 2023. Using a dataset from BMKG encompassing 13,860 seismic events, each algorithm was assessed based on Silhouette Score and Cluster Purity metrics. Results indicated that K-Means provided the best balance, forming six clusters with a Silhouette Score of 0.3245 and Cluster Purity of 0.7366, making it the most suitable for seismic zone analysis. K-Medoids closely followed with a Silhouette Score of 0.3158 and Cluster Purity of 0.7190. Although DBSCAN effectively handled noise, its negative Silhouette values indicated poor clustering quality. Fuzzy C-Means and K-AP underperformed, with K-AP generating an impractically high number of clusters (196) and the lowest Silhouette Score (0.2550). This study offers a novel, comprehensive comparison of clustering algorithms for Indonesian earthquake data, emphasizing a dual-metric evaluation approach. By identifying K-Means as the most effective algorithm, provides valuable insights for disaster mitigation and seismic risk analysis.https://jurnal.iaii.or.id/index.php/RESTI/article/view/5514cluster puritycomparative studyearthquake clusteringk-means
spellingShingle Nurfidah Dwitiyanti
Siti Ayu Kumala
Shinta Dwi Handayani
Comparative Study of Earthquake Clustering in Indonesia Using K-Medoids, K-Means, DBSCAN, Fuzzy C-Means and K-AP Algorithms
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi)
cluster purity
comparative study
earthquake clustering
k-means
title Comparative Study of Earthquake Clustering in Indonesia Using K-Medoids, K-Means, DBSCAN, Fuzzy C-Means and K-AP Algorithms
title_full Comparative Study of Earthquake Clustering in Indonesia Using K-Medoids, K-Means, DBSCAN, Fuzzy C-Means and K-AP Algorithms
title_fullStr Comparative Study of Earthquake Clustering in Indonesia Using K-Medoids, K-Means, DBSCAN, Fuzzy C-Means and K-AP Algorithms
title_full_unstemmed Comparative Study of Earthquake Clustering in Indonesia Using K-Medoids, K-Means, DBSCAN, Fuzzy C-Means and K-AP Algorithms
title_short Comparative Study of Earthquake Clustering in Indonesia Using K-Medoids, K-Means, DBSCAN, Fuzzy C-Means and K-AP Algorithms
title_sort comparative study of earthquake clustering in indonesia using k medoids k means dbscan fuzzy c means and k ap algorithms
topic cluster purity
comparative study
earthquake clustering
k-means
url https://jurnal.iaii.or.id/index.php/RESTI/article/view/5514
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AT sitiayukumala comparativestudyofearthquakeclusteringinindonesiausingkmedoidskmeansdbscanfuzzycmeansandkapalgorithms
AT shintadwihandayani comparativestudyofearthquakeclusteringinindonesiausingkmedoidskmeansdbscanfuzzycmeansandkapalgorithms