Colo

Colo is a stratovolcano in Indonesia. It forms the island of Una-Una at the middle of the Gulf of Tomini, the northern part of Sulawesi. The volcano is broad and has a low profile with only 507 metres (1,663 ft) above the sea level. It contains a 2 kilometres (1.2 mi) wide caldera with a small volcanic cone inside. Three eruptions have been recorded, with two of them causing damage.

Source: Wikipedia (CC BY-SA 4.0) — https://en.wikipedia.org/wiki/Mount_Colo