The Yomiuri Shimbun Two new craters can be clearly seen on Mt. Motoshirane, which is part of Mt. Kusatsushirane, in Gunma Prefecture. The 2,171-meter-high volcano erupted on Jan. 23, killing one person and injuring 11.
Around the new craters, viewed in this footage from the Yomiuri Shimbun helicopter, numerous indentations can be seen in the ground that were created by rocks ejected by the volcano.
One of the newly formed craters is on the north side of Kagamiike pond, near a crater that is said to have erupted about 1,500 years ago. A row of five or more vents was formed in the area, which measures 30 meters wide and 100 meters long.
The other new crater was found on the west side of the pond. This area became a 5-meter-wide and 10- to 15-meter-long hollow following the Jan. 23 eruption. The crater is located about 30 meters from a ski slope along the valley. [Released on January 29, 2018]