(Naruko)
Honshu, Japan
38.73 N, 140.73 E
summit elevation 462 m
lava domes
The volcano consists of a 7 x 5.5 km caldera NW of Sendai City.
Lake Katanuma fills part of the caldera and is strongly acidic.
The highest lava dome, Oga-dake, is only 470 m above sea level.
837 AD