Title Daideikazan Mud Volcano - “Great Mud Volcano”

  • Aomori
  • Akita
  • Iwate
Topic(s):
Nature/Ecology National Parks/Quasi-National Parks
Medium/Media of Use:
Interpretive Sign
Text Length:
≤250 Words
FY Prepared:
2019
Associated Tourism Board:
Towada Hachimantai National Park
Associated Address:
Hachimantai, Kazuno-shi , Akita

大泥火山—“Great Mud Volcano”


この地域は、かつて温泉の池があった場所でした。しかし、蒸気から生じた沈殿物がこの沼を埋め立て、泥から時折噴出される高圧の蒸気によって沈殿物が堆積しました。大泥火山は日本で一番大きな泥火山で、1917年から1918年にかけて形成されて以来大きくなりつづけています。泥の深さは8メートルで、噴出物の温度はおよそ94.5℃です。


Daideikazan Mud Volcano - “Great Mud Volcano”


This area was once the site of a hot-spring pond. However, sediment from escaping steam filled up the pond, and then occasional eruptions of compressed steam from the mud caused the sediment to pile up. Daideikazan is the largest mud volcano in Japan, growing steadily in size since its formation in 1917–1918. The mud is 8 meters deep, and the ejected material reaches approximately 94.5°C.


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