Fig. 4From: Episode 4 (2019–2020) Nishinoshima activity: abrupt transitions in the eruptive style observed by image datasets from multiple satellitesa–t Eruption sequence of the Episode 4 activity based on a geological interpretation of the ALOS-2 images. S1a: Stage 1a; S1b: Stage 1b; S2: Stage 2; and S3: Stage 3Back to article page