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Earth, Planets and Space
Fig. 7. | Earth, Planets and Space

Fig. 7.

From: Switching from seismic to seismo-acoustic harmonic tremor at a transition of eruptive activity during the Shinmoe-dake 2011 eruption

Fig. 7.

(a) An image from the monitoring camera (Cam. in Fig. 1) at 18:19 on January 31st, 2011. A –D are the reference points with A –D being 753 m. (b) The colors in the frame (20×150 pixels) at C in (a) are displayed from 18:00 to 19:00 on January 31st. (c) The change of the heights of the lava surface. The red crosses were picked from images like (b) and converted to meters using the scales measured in (a), which are comparable with individual measurements on the selected images (blue circles).

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