Seismicity clusters in Sumatra Arc for mainshocks ≥7.0

Description This dataset contains seismicity clusters in the Sumatra Arc for the years 2009–2023, characterized by mainshocks with magnitude Mm ≥ 7.0. The clusters were derived using different clustering methods Files cluster_Mm7_GRETAS.list – cluster_Mm7_GRETAS.list– clusters obtained with GRETAS (GRaph-based approach to ETAS), a graph-based theoretical method based on the Epidemic-Type Aftershock Sequence (ETAS) model. cluster_Mm7_GRETAS_Uhrh_55.list – clusters obtained with GRETAS, enhanced by physically motivated filtering. cluster_Mm7_window_based.list – clusters obtained with a window-based method. Format Each line contains the following event information: day month year hour minute second magnitude latitude longitude depth The line ************** is used to separate different clusters. References Gentili, S., Chiappetta, G., Petrillo, G., Brondi, P. & Zhuang, J. Forecasting strong subsequent earthquakes in japan using an improved version of nestore machine learning algorithm. Geosci. Front. 16, 102016, DOI: 10.1016/j.gsf.2025.102016 (2025). Zhuang J, Ogata Y, Vere-Jones D (2002) Stochastic declustering of space-time earthquake occurrences. J Am Stat Assoc 97(458):369–380. DOI: 10.1198/016214502760046925