Report on Langila (Papua New Guinea) — June 1994

Bulletin of the Global Volcanism Network, vol. 19, no. 6 (June 1994)
Managing Editor: Richard Wunderman.

Langila (Papua New Guinea) Ash columns from both active craters

Please cite this report as:

Global Volcanism Program, 1994. Report on Langila (Papua New Guinea). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 19:6. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN199406-252010.

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Langila

Papua New Guinea

5.525°S, 148.42°E; summit elev. 1330 m

All times are local (unless otherwise noted)


"The relatively low level of activity . . . continued throughout June. Emissions from Crater 2 consisted of weak-to-moderate white-grey vapour-and-ash clouds, associated with blue vapour on the 15th only. Forceful ejections of thick grey ash columns rising several hundred metres above the crater rim were reported on 1, 6, and 8 June. These emissions resulted in fine ashfalls NW and SE of the volcano. On these occasions, as on most days after 16 June, weak explosion noises were heard. Steady weak red glow was visible from the 6th until month's end.

"Crater 3 released thin white vapour with very low ash content, and occasionally thin blue vapour. On 27 June, a moderately thick white-grey ash column rose to a few hundred metres above the summit and dispersed fine ash to the NW side of the volcano. It was accompanied by one deep explosion at 0901. There was no visible glow throughout the month.

"Seismographs were unfortunately faulty until 29 June. When back in operation, they recorded a low level of activity comparable to that of early May."

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, R. Stewart, I. Itikarai, P. de Saint-Ours, and C. McKee, RVO.