URL：https://www.researchgate.net/profile/Polina-Lemenkova-2/publication/342424787/figure/fig1/AS:906024072519680@1593024380771/Topographic-map-of-the-study-area-Izu-Bonin-Trench_Q640.jpg
掲載元：https://www.researchgate.net/figure/Topographic-map-of-the-study-area-Izu-Bonin-Trench_fig1_342424787
