Report on Langila (Papua New Guinea) — October 1998
Bulletin of the Global Volcanism Network, vol. 23, no. 10 (October 1998)
Managing Editor: Richard Wunderman.
Langila (Papua New Guinea) Large explosion on 21 September causes ashfall
Please cite this report as:
Global Volcanism Program, 1998. Report on Langila (Papua New Guinea). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 23:10. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN199810-252010.
Papua New Guinea
5.525°S, 148.42°E; summit elev. 1330 m
All times are local (unless otherwise noted)
Crater 2 emitted thin to thick white vapor throughout September, with an occasional ash component. Weak roaring noises were reported on 1 September. One large explosion on 21 September sent ash to an altitude of 2-3 km and resulted in ashfalls to the SW. Crater 3 was quiet, emitting only thin white vapor.
The activity at Crater 2 during October was moderate and uneventful. Pale gray ash clouds rose intermittently to ~500 m, without sound. On 21 October, however, weak roaring and rumbling sounds accompanied emissions to 1,000-1,500 m and a bright fluctuating night glow.
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: Patrice de Saint-Ours, Steve Saunders, and Ben Talai, RVO.