English: South Pagan volcano occupies the SW end of Pagan Island. The ridge in the right foreground is the eroded rim of a 4-km-wide caldera inside which the conical South Pagan volcano (left) was constructed. The elongated summit of South Pagan is cut by four craters. Eruptions of South Pagan volcano occurred during the 19th century, but it has been much less active than North Pagan volcano, the peak at the far center on the NE tip of the island.