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Fig. 1 | Earth, Planets and Space

Fig. 1

From: Continuous seismic monitoring of Nishinoshima volcano, Izu-Ogasawara, by using long-term ocean bottom seismometers

Fig. 1

Index map of Nishinoshima (left) and positions of LT-OBSs around Nishinoshima (right). Left: Nishinoshima is part of the Izu-Ogasawara volcanic arc system and is positioned approximately 1000 km south of Tokyo. Right: squares indicate positions of LT-OBSs, deployed from February 2015 to May 2017. Observations were divided into four terms, which are classified in terms of colors. Bathymetry was obtained by JCG (Morishita et al. 2017). Contour intervals for bathymetry is 20 m

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