Report on Langila (Papua New Guinea) — December 1991
Bulletin of the Global Volcanism Network, vol. 16, no. 12 (December 1991)
Managing Editor: Lindsay McClelland
Langila (Papua New Guinea) Ash emission and glow
Please cite this report as:
Global Volcanism Program, 1991. Report on Langila (Papua New Guinea). In: McClelland, L (ed.), Bulletin of the Global Volcanism Network, 16:12. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN199112-252010.
Papua New Guinea
5.525°S, 148.42°E; summit elev. 1330 m
All times are local (unless otherwise noted)
"A decline in activity persisted throughout December. Crater 2 activity consisted of continuous emissions of white to grey (with occasional blue) vapours, accompanied by deep loud-to-low rumbling and explosion noises. Steady weak red glows were visible over the crater mouth during most nights. Crater 3 continued to gently and occasionally forcefully emit grey ash clouds, without any audible sounds. No night glows were observed. Despite the decline in observed surface activity, seismicity increased somewhat in December. The daily total of low-frequency events ranged from 4 to 52 . . . ."
Further Reference. Mori, J., Patia, H., McKee, C., Itikarai, I., Lowenstein, P., De Saint-Ours, P., and Talai, B., 1989, Seismicity associated with eruptive activity at Langila volcano, Papua New Guinea: JVGR, v. 38, p. 243-255.
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: D. Lolok and B. Talai, RVO.