No latest activity reported for Hiuchi.

Below is a summary of eruption dates and Volcanic Explosivity Indices (VEI).

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Hayakawa Y, 1994b. Discovery of an eruption product of ca. 500 years ago at Hiuchigatake. {Bull Volc Soc Japan (Kazan)}, 39: 243-246 (in Japanese)

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. {IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior}.

Japan Association Quaternary Research, 1987. {Quaternary Maps of Japan: Landforms, Geology, and Tectonics}. Tokyo: Univ Tokyo Press

Nakano S, Yamamoto T, Iwaya T, Itoh J, Takada A, 2001-. {Quaternary Volcanoes of Japan}. Geol Surv Japan, AIST, http://www.aist.go.jp/RIODB/strata/VOL_JP/

Ono K, Soya T, Mimura K, 1981. Volcanoes of Japan. {Geol Surv Japan Map Ser}, no 11, 2nd edition, 1:2,000,000

Yamamoto T, 1999. Plinian fall deposits in the Fukushima-Tochigi area during 0.3-0.1 Ma: stratigraphy of marker tephra layers erupting from Numazawa, Hiuchigatake, Kinunuma, and Sunagohara volcanoes. {Bull Geol Surv Japan}, 50: 743-767

Hiuchi volcano lies in Nikko National Park and erupted the 8 cu km Hiuchigatake-Nanairi tephra and pyroclastic flow deposit about 170,00-160,000 years ago. Two lava domes at the southern end of the summit of Hiuchi stratovolcano overlook Ozenuma lake, a popular hiking destination in the national park. The southern of the two domes, Akanagure, produced a series of viscous lava flows about 3500 years ago that extend to the southern and western flanks the volcano. The northern dome, Mi-ike, was the source of a tephra layer correlated with a report of historical activity in 1544 (Hayakawa, 1994b).