Mount Mihara is a famous landmark on the Japanese isle of Izu-Oshima. It is an active volcano located on the northern tip of the Izu-Bonin volcanic arc. The mountain has been recorded to have erupted numerous times throughout history, and is mentioned as far back as Nara period written records. The last recorded eruption was in 1990.
The island is a stratovolcano with a basaltic composite cone, dating from the late Pleistocene period, between 10,000 and 15,000 years ago, rain from an ocean floor with a depth of between 300 and 400 meters,
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