The caldera rim runs from the left foreground toward the right center. Photo by Self Defense Force of Japan. 2 Crater rows extending to the south-southwest. About one hour after the start of eruption. Photo by Self Defense Force of Japan.
White steam rising at flow front is produced by artificial water spray.
A 4.5 km-long fissure in the background. Photo by Maritime Safety Agency. 5 Stereo-aerial photograph showing the southern part of the fissure vents. Southernmost tuff ring at Nippana was lost by erosion 8 days after the eruption.