Report on Langila (Papua New Guinea) — April 1980
Scientific Event Alert Network Bulletin, vol. 5, no. 4 (April 1980)
Managing Editor: David Squires.
Langila (Papua New Guinea) Incandescent explosions continue
Please cite this report as:
Global Volcanism Program, 1980. Report on Langila (Papua New Guinea). In: Squires, D (ed.), Scientific Event Alert Network Bulletin, 5:4. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.SEAN198004-252010.
Papua New Guinea
5.525°S, 148.42°E; summit elev. 1330 m
All times are local (unless otherwise noted)
"Langila's eruption continued but observations have been prevented at times by poor weather. Incomplete reports for March indicated that incandescent explosive activity was continuing in the new crater, formed on 19 January. Blue and white vapour emissions from the new crater were commonly observed in April. Brown ash emissions were seen 9 and 10 April, and at night on those dates incandescent lava fragment ejections occurred. Crater glow was seen occasionally during the month, and rumbling and explosion sounds were heard daily. The 1980 lava flow appeared to have grown little since it was first seen on 15 February. Crater 2 usually emitted white vapour, and brown emissions were reported on 2 days in April. Explosive activity was expressed seismically as small discrete events that had the appearance of discontinuous tremor."
Geologic Background. Langila, one of the most active volcanoes of New Britain, consists of a group of four small overlapping composite basaltic-andesitic cones on the lower eastern flank of the extinct Talawe volcano. Talawe is the highest volcano in the Cape Gloucester area of NW New Britain. A rectangular, 2.5-km-long crater is breached widely to the SE; Langila volcano was constructed NE of the breached crater of Talawe. An extensive lava field reaches the coast on the north and NE sides of Langila. Frequent mild-to-moderate explosive eruptions, sometimes accompanied by lava flows, have been recorded since the 19th century from three active craters at the summit of Langila. The youngest and smallest crater (no. 3 crater) was formed in 1960 and has a diameter of 150 m.
Information Contacts: C. McKee, RVO.