Mount Yoko
横岳
Highest point
Elevation2,480 m (8,140 ft)
Prominence400 m (1,300 ft)
ListingList of mountains and hills of Japan by height
Coordinates36°5′15″N 138°19′12″E / 36.08750°N 138.32000°E / 36.08750; 138.32000
Geography
LocationHonshū, Japan
Parent rangeNorthern Yatsugatake Volcanic Group
Topo mapGeographical Survey Institute 25000:1 蓼科山,
25000:1 蓼科,
50000:1 蓼科山
Geology
Age of rockQuaternary
Mountain typeVolcanic
Volcanic arc/beltNortheastern Japan Arc
Last eruption1200 ±100 years

Mount Yoko (横岳, Yoko-dake) also Mount Kita Yoko, is an active lava dome located in the Northern Yatsugatake Volcanic Group of the Yatsugatake Mountains, Honshū, Japan. Mount Yoko has shown the most recent activity and is now considered an active volcano. It last erupted about 800 years ago.[1] The eruption consisted of ash with a lava flow of some 3 million cubic meters. The eruption was dated by corrected radiocarbon dating. The next previous eruption was in or after 400 BCE.[2]

References

  1. "KITA YATSU-GA-TAKE (TATESHINA-YAMA, YOKO-DAKE etc.)". Quaternary Volcanoes of Japan. Geological Survey of Japan, AIST. 2006. Archived from the original on 2012-12-19. Retrieved 2008-08-23.
  2. "Yokodake". Global Volcanism Program. Smithsonian Institution. Retrieved 2021-06-24.
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