Title Mt. Iwate’s Peephole

  • 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

見所その5


岩手山の覗き穴


黒倉山のすぐ下にある西岩手カルデラの内部に位置する大地獄谷は、2メートルの高さに噴き上がる硫黄ガスの噴気孔です。噴気孔は、ガスと蒸気が出てくる地面の開口部です。ここでは、火山活動の脈動を体感できます。岩手山の覗き穴のような大地獄谷は、現在の火山内部の様子を垣間見せてくれます。


*大地獄谷に近づくのは非常に危険なので、噴気孔を見る際は安全のため登山道から外れないでください。


Point of Interest No. 5


Mt. Iwate’s Peephole


Ojigokudani, located inside the main western Nishi-Iwate caldera just below Mt. Kurokurayama, is a 2-meter high sulfur fumarole—that is, an opening in the Earth’s crust where gas and steam escape. Here, you can feel the pulsing movements of volcanic activity for yourself. Ojigokudani is like a peephole into Mt. Iwate, allowing a glimpse into the current inner workings of the volcano.


*Approaching Ojigokudani is extremely dangerous, so please enjoy observing the fumarole from the safety of the trail.


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