Which volcano is the deepest known submarine volcano caldera?
Quick Answer
The Tamu Massif region on the Shatsky Rise has been proposed as one of the largest single shield volcanoes on Earth, but for a deep submarine caldera, the most famous confirmed example is the massive Kikai caldera in Japan. Its summit sits beneath the sea, making it a giant hidden volcanic feature.
The Full Story
Among underwater volcanic systems, the Kikai caldera in Japan is one of the largest and most significant submarine volcanic structures. Its caldera lies beneath the sea and is associated with major explosive eruptions in the past. Submarine volcanic systems are hard to measure because much of the structure is hidden underwater. These hidden volcanoes can still generate major tsunamis and explosive eruptions if they become active near coastlines.
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