Ibu

SUMMARY:

Type: composite
Activity: active
Last Eruption: 1999 AD
Rock Type: ?
Eruptive Volume: ? cu km
Location Map from Xerox PARC
Latitude: 1.48 N
Longitude: 127.63 E

GEOLOGIC HISTORY

The truncated summit of Gunung Ibu stratovolcano along the NW coast of Halmahera has nested summit craters. The inner crater, 1 km wide and 400 m deep, contains several small crater lakes. A large parasitic cone is located ENE of the summit. A smaller one to the WSW has fed a lava flow down the western flank. A group of maars is located below the northern and western flanks of the volcano.

Historic Activity: A 1911 eruption is the only one previously recorded in historical time.

Recent Activity:

• Ibu volcano on Halmahera island started erupting on December 18, 1998. Eruption was continuing in May.

Data Sources

• Global Volcanism Network (V. 24, No. 1 to V. 24, No. 5).

ADDITIONAL INFORMATION

• Link to Global Volcanism Network's Ibu Information

Last Update: 2/27/00