Fig. 7From: Segmentation characteristics of deep, low-frequency tremors in Shikoku, Japan using machine learning approachesSchematic diagram of various triangle tests that discriminate between the source effect of different areas: a TA and TB; b TA and TC; c TA and TD; d TB and TC; e TB and TD; and f TC and TD. Note that the number in the filled circle corresponds to the Experiment IDBack to article page