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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Spatio-temporal clustering of successive earthquakes as inferred from analyses of global CMT and NIED F-net catalogs

Fig. 2

Schematic illustrations showing how different clusters of successive earthquakes are defined for different choices of D and \({T}_{a}\). Blue circles represent source events, yellow circles mean dependent events, and each gray ellipse indicates a group of successive earthquakes (clusters). a Group of clusters obtained for initial D and \({T}_{a}\). b Green circles and green ellipse represent new dependent events and a new cluster, respectively, obtained by increasing D. c Orange circles and orange ellipse represent new dependent events and a new cluster, respectively, obtained by increasing \({T}_{a}\). d New dependent events and new clusters obtained by increasing both D and \({T}_{a}\)

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