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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Phreatic eruptions and deformation of Ioto Island (Iwo-jima), Japan, triggered by deep magma injection

Fig. 3

A comparison between earthquake activity and vertical movement of Ioto after 1997. a Daily number of earthquakes counted at IJMV. The red curve shows the cumulative number of earthquakes. The red triangles and white triangles denote occurrence times of phreatic eruptions with and without precursors, respectively. b Vertical movement by daily solutions of continuous GNSS observation after 1997 at the continuous stations

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