Report on Langila (Papua New Guinea) — April 1993
Bulletin of the Global Volcanism Network, vol. 18, no. 4 (April 1993)
Managing Editor: Edward Venzke.
Langila (Papua New Guinea) Strombolian explosions continue
Please cite this report as:
Global Volcanism Program, 1993. Report on Langila (Papua New Guinea). In: Venzke, E (ed.), Bulletin of the Global Volcanism Network, 18:4. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN199304-252010.
Papua New Guinea
5.525°S, 148.42°E; summit elev. 1330 m
All times are local (unless otherwise noted)
"Eruptive activity was at a moderate-to-high level during April. A total of 134 Vulcanian explosion earthquakes was recorded, with the highest daily total of 17 events on 5 April.
"Incandescent Strombolian projections to 300 m above Crater 2 were seen on 2, 4, 5-10, and 23 April. Steady, weak glow was observed on 11, 19, 20, 24, and 26 April. Explosion and rumbling noises were heard throughout the month. Dark grey ash columns and moderate-to-strong white-grey vapour were released every day. Some ashfall to the SE and NW of the volcano was reported.
"Crater 3 was active until 13 April, producing moderate-to-strong ash emissions accompanied by deep explosion noises. Emissions then stopped until 22 April when weak blue and white vapours appeared. Emissions stopped again on 26 April. No glow or incandescent ejections were observed."
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: N. Lauer, R. Stewart, and C. McKee, RVO.