The most recent eruption, which occurred 70,000 years ago was among the largest known eruptions ever. Uluan is located on the Porsea caldera, a part of the volcano that erupted approximately 800,000 years ago.
The most recent eruption, which occurred 70,000 years ago, was among the largest known eruptions ever. Uluan is situated in the Porsea caldera, part of a volcano that erupted approximately 800,000 years back.