Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 36.762°N
  • 139.494°E

  • 2486 m
    8154 ft

  • 283141
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Nantai.

The Global Volcanism Program has no Weekly Reports available for Nantai.

The Global Volcanism Program has no Bulletin Reports available for Nantai.

Eruptive History

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
9540 BCE ± 500 years Unknown Confirmed   Radiocarbon (corrected) Bentengawara pyroclastic-flow deposit

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Photo Gallery

Nantai stratovolcano on the right horizon rises above Yunoko lake and the Senjogahara plain (right center). Lava flows from the early stage of the construction of Nantai volcano dammed up the Daiyo River, forming Lake Chuzenji, out of view to the right. The dramatic Kegon waterfall plunges over this barrier. A collapse depression on the north (left) side of the volcano gives Nantai a somewhat asymmetrical profile. The latest effusive activity of Nantai produced the Osawa lava flow, which traveled from the breached crater down the north flank.

Photo by Yukio Hayakawa (Gunma University).
See title for photo information.

Smithsonian Sample Collections Database

There are no samples for Nantai in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites