3D bathymetric image of the Izu‒Ogasawara Trench and its vicinity based on 150 m grid DEM

Abstract

We have made detailed anaglyph images of the Izu‒Ogasawara Trench and its vicinity based on 150 m DEM（Digital Elevation Model） processed from the original data obtained by Japan Coast Guard and JAMSTEC, in order to provide more detailed 3D submarine images for a more precise interpretation of tectonic landforms than previous studies. We give examples of images of the plate boundary around Mogi Seamount, extensive submarine eruption around Sumisu Caldera, normal faulting around Shichiyo Volcano Chain, volcanic domes between Sofugan Tectonic Line and Sofu Trough, central part of the Ogasawara Ridge and normal faulting around the Ogasawara Plateau.