Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 43.453°N
  • 143.036°E

  • 2013 m
    6603 ft

  • 285061
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Maruyama.

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

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

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.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1898 Dec 3 (?) 1898 Dec 6 Confirmed 2 Historical Observations Maru-yama (No. 1 crater)
1700 BCE (?) Unknown Confirmed 2 Radiocarbon (corrected) Maru-yama, My-b tephra

Deformation History

Information about Deformation periods will be available soon.

Emission History

There is no Emissions History data is available for Maruyama.

Photo Gallery

Hydrothermally altered rocks in the crater of Maru-yama lava dome are seen in the foreground of this aerial view from the NE. Maru-yama, which had a minor phreatic eruption in 1898, is part of the Nipesotsu-Maruyama volcano group, located in central Hokkaido east of Tokachi-dake volcano. The volcano group is composed of a number of overlapping andesitic-to-dacitic stratovolcanoes and lava domes along a NW-SE trend.

Photo by Yukio Hayakawa, 1990 (Gunma University).
See title for photo information.
Cross-country skiers in the saddle between Nipesotsu-dake stratovolcano and Maru-yama lava dome approach the south side of 2013-m-high Nipesotsu volcano. The Nipesotsu-Maruyama volcano group, located east of Tokachi-dake volcano, is composed of a number of overlapping andesitic-to-dacitic lava domes constructed along a NW-SE trend. A minor phreatic eruption took place at Maru-yama lava dome in 1898, and fumaroles are present on one of its summit craters.

Copyrighted photo by Yoshihiro Ishizuka, 1998 (Japanese Quaternary Volcanoes database, RIODB, and Geol Surv Japan, AIST,
See title for photo information.

Smithsonian Sample Collections Database

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

Affiliated Sites