No latest activity reported for Nantai.

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.

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

Ishikawa T, Minato M, Kuno H, Matsumoto T, Yagi K, 1957. Welded tuffs and deposits of pumice flow and nuee ardente in Japan. {20th Internatl Geol Cong, Mexico City}, Sec 1: 137-150

Miyake Y, Saito M, Takeshita Y, Oikawa T, Saito T, 2009. A newly found pyroclastic flow deposit around 10 ka at Nikko Nantai volcano, northeast Japan. {Bull Volc Soc Japan (Kazan)}, 54: 163-173 (in Japanese with English abs)

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/

Suzuki T, 1996. Discharge rates of fallout tephra and frequency of plinian eruptions during the last 400,000 years in the southern Northeast Japan arc. {Quat Internatl}, 34-36: 79-87

Tsuboi S, Sugi K, 1926. Geological guide to the Nikko district. {Pan-Pacific Sci Cong Guidebook Excur}, B-1: 4-25

Yamasaki M, 1981. Nantai and adjacent volcanoes in the Nikko region. {In}: Aramaki S (ed) {Symp Arc Volcano Field Excur Guide to Fuji, Asama, Kusatsu-Shirane and Nantai Volcanoes}, Tokyo: Volc Soc Japan, 1: 64-75,

Nantai stratovolcano rises above the north shore of Lake Chuzenji in Nikko National Park, and forms a backdrop to the renowned temple complex at Nikko. Lava flows from the early stage of the construction of Nantai volcano dammed up the Daiyo River, forming Lake Chuzenji. The dramatic Kegon waterfall plunges over this barrier. Nantai has an asymmetrical profile when viewed from the west as a result of late-stage collapse of the north side of the volcano. Two major late-stage eruptions ejected large amounts of scoriae, followed by the emission of pyroclastic flows. The latest effusive activity of Nantai produced the Osawa lava flow, a thick, viscous dacitic flow that traveled from the breached crater down the north flank. The Bentengawara pyroclastic-flow deposit representing the latest known eruptive activity was radiocarbon dated at about 10,000 years Before Present and was emplacement following a quiescent period of about 3000 years.