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

Fig. 2

From: Solidified magma reservoir derived from active source seismic experiments in the Aira caldera, southern Kyushu, Japan

Fig. 2

Map of the 195 km E–W transect constructed during the 2017/2018 seismic experiments. a Observation sites in Profile-A, -B, -C, -D, and -E are denoted by black dots. Onshore explosive sources (SP1–SP9) and vibroseis sources (VA and VC) are indicated by inverse triangles. Offshore airgun sources in Profile-B, -D, and -F are indicated by blue lines. The red broken straight line depicts the projection line used in travel-time tomography. b the profile of topographic heights at all stations and all seismic sources

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