Sirung

SUMMARY:

Type: compound
Activity: active
Last Eruption: 1970 AD
Rock Type: ?
Eruptive Volume: ? cu km
Location Map from Xerox PARC
Latitude: 8.51 S
Longitude: 124.15 E

GEOLOGIC HISTORY

 Sirung volcano is located at the NE end of a 14-km-long line of volcanic centers that form a peninsula at the southern end of Pantar Island. This low volcano is truncated by a 2-km-wide caldera whose floor often contains one or more small lakes. Much of the volcano is constructed of basaltic lava flows, and the Gunung Sirung lava dome forms the high point on the caldera's western rim.

Historic Activity:

• Eruptions have occurred in 1852, 1899, 1927, 1934, 1947, 1953, 1960, 1964, 1965, and 1970.
• A number of phreatic eruptions have occurred from vents within the caldera during the 20th century.
• A 1965 eruption produced an ash column and ashfall.
• Sirung's last reported eruption was in 1970.

Recent Activity:

• No eruptive activity since 1970 eruption.
• No change in fumaroles and crater lake after the nearby 6.5 magnitude Indonesian earthquake of November 28, 1987.

Data Sources

• Smithsonian's SEAN Bulletin (V. 12, No. 12) .

ADDITIONAL INFORMATION

• Link to Global Volcanism Network's Sirung Information

Last Update: 2/29/00