mud volcanoImage
mud volcanoImage
mud volcanoImage
mud volcanoImage

Mud volcanoes that shape hell

mud volcano


The mud volcano of Unzen Jigoku is formed by white mud made from melted rocks containing high-temperature volcanic gas including hydrogen sulfide, which rises up with steam and forms a shape resembling a volcano. Volcanoes can be formed by lava that erupts from the crater and cools and hardens to create a mountain, or by the stickiness of lava that forms the mountain, so the shape varies greatly depending on the mountain. In fact, the same phenomenon occurs with mud volcanoes. Mud volcanoes are washed away by rain and each time they erupt, creating a different shape.

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The Unzen Oyama Information Center

Unzen City, Nagasaki Prefecture  Certification badge

The Unzen Oyama Information Center is a facility that provides a wide range of information about the attractions of Unzen, including natural information, historical introductions, and exhibits on hot springs. We have the latest information to help you enjoy and appreciate Unzen more deeply, so please stop by here when you arrive in Unzen. Let's obtain the necessary information about nature, history, mountain climbing, transportation, and embark on a fun fieldwork. Please be sure to experience and enjoy the deep nature and history of Unzen!

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