Kumbang and Mabuk Crater Lake Complex

Kumbang and Mabuk Crater Lake Complex

The caldera has a diameter of 7 km, with the east side of the caldera wall lower than the west side, with the highest point at an elevation of 2,737 m, and the caldera lip at an elevation of 2,220 m. After the formation of the caldera in the eruption of period I 33,000 years ago, followed by the eruption of period II 21,000 years ago, a new center of volcanic activity gradually emerged, namely the Kumbang Crater and Mabuk Crater, with the eruption results only scattered around the peak with basalt-andesite lava. Both craters gradually filled with water known as lakes.