Global Volcanism Program | Image GVP-01425
This entire flat forested plain, known as Aokigahara ("Blue Tree Plain") is underlain by a single massive lava flow from Fuji. A major explosive and effusive eruption began in June 864 CE from Nagaoyama, a vent on the NW flank. Lava flowed into lakes Motosu and Senoumi, destroying lakeshore houses. It divided Lake Senoumi into the two present-day lakes of Shojiko(seen here in the distance against a Tertiary mountain range to the NW) and Saiko. The Aokigahara Marubi lava field covered an area of 32 km2.
Photo by Lee Siebert, 1977 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.
Keywords: lava flow