Photos taken by S. Nakada.
Bottom of the collapsed crater. A black-colored mound on the bottom may be a pyroclastic cone of phreatic eruptions during 14-15 July.
The collapsed crater was deepened during the 14-15 July eruption events. The depth reaches approximately 400 m (much larger than the depth of the 8 July event--about 200 m), and the total volume of collapse reaches about 0.2 cubic kilometers. On the other hand, the volume of eruption products may be as small as 10 million cubic meters.
Northern rim of collapsed crater
Southern rim of collapsed crater
Toilet in a parking lot near the summit was distroyed by cinders of the 14-15 July events.
Caldera rim in the background.
Green area near the summit was completely covered by cinders of the 14-15 July events. No juvenile materials were found in ash and cinders.