Emissions were limited to weak white vapours. Night glow from the crater was seen once, on 7 December. Variable weak to bright red glow was observed at night on 3-6 and 14 February. A daily range of 10-50 explosion earthquakes was recorded at the seismic station until it became non-operational on 24 May. During periods of eruptive activity at Langila Volcano, various combinations of low-frequency earthquakes and high-frequency air waves have been recorded, ranging from earthquakes alone to air waves alone. Talawe is the highest volcano in the Cape Gloucester area of NW New Britain. ", Activity declines; one Vulcanian explosion, "Activity was substantially reduced during February. For the remainder of September and October, it only emitted very thin wisps of vapor, occasionally accompanied by blue vapor. Since 27 November, a gray ash plume has been continuously visible over the volcano. Crater 3 was inactive in June with the exception of a weak trail of thin white vapor escaping on 16 June. commenced on 12 July 1973. ", Occasional Vulcanian explosions for 10 days. Approximately 10,000 people live in the volcano’s vicinity, in a remote area where radio communication is unreliable and access is only by boat or helicopter. Booming noises were heard on 1 and 10 June. Fine ashfall was reported downwind (SE). Weak rumbling noises were occasionally heard and weak red glow was reported on the nights of 28 and 29 March. An extensive lava field reaches the coast on the N and NE sides of Langila. Crater 3 was quiet. Activity subsides; landslides widen crater. "Following a period of moderately intensified explosive activity from Crater 2 in the second half of April, strong eruptive activity took place from this vent 2-16 May. . Ash plumes rose to altitudes of 2.3-3.3 km (7,500-10,800 ft) a.s.l. Moderate Vulcanian activity; explosion events; tremor. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. Crater 3 continued to gently and occasionally forcefully emit grey ash clouds, without any audible sounds. Ejections of incandescent material were seen on 6, 7, 8, and 14 August. No MODVOC thermal alerts were recorded after 5-6 October 2009, through February 2010. Based on analyses of satellite imagery, the Darwin VAAC reported that on 9 August a minor ash emission from Langila rose 1.8 km (6,000 ft) a.s.l. Information Contacts: I. Itikarai, P. de Saint-Ours, R. Stewart, and C. McKee, RVO. Emissions from Crater 2 during 19-31 October consisted of thin white to thick gray vapor and ash clouds that rose a few hundred meters above the crater rim; low rumbling noises were observed during the ash emissions. Seismic records were unavailable between 14 and 30 April. Based on analyses of satellite imagery and wind model data, the Darwin VAAC reported that during 11 and 15-16 October ash plumes from Langila rose 1.8-2.1 km (6,000-7,000 ft) a.s.l. 2005: April . The heights of the plumes were not reported. Heights of Vulcanian explosion columns above Crater 2 at Langila, April 1983. At the times of the strongest emissions however, up to four vents erupted concurrently with a deafening jet engine noise, generating air and ground vibrations recorded by the summit seismic station as emergent periods of tremor-like signals. The only sound from this crater during November was a deep loud explosion on 28 November and rumbling noises on the 29th and 30th. A blocky lava flow [first noticed on 13 October] had advanced about 2 km on a broad front from Crater 3. Occasional roaring noises were heard accompanying emissions. and drifted NW. Activity low; explosions at middle and end of month, "A relatively low level of activity persisted during March, although a slight intensification was noted after the 19th. More frequent Vulcanian explosions from Crater 2, accompanied by characteristic volcanic earthquakes and sequences of continuous harmonic tremor, took place 10-14 and 19-23 August. No seismic recording was achieved after the 3rd because of equipment failure.". The explosions produced dark grey vapour and ash clouds or columns, resulting in light ashfalls over the NW flank of the volcano and to coastal villages (10-15 km distant). Emissions from Crater 2 became markedly ash-laden 4-7 June, with a plume rising a few kilometers above the crater and ashfalls on coastal areas 10 km NW. ", Vulcanian explosions and glow continue; seismicity intensifies. Weak glow from Crater 2 was observed at night 17-22 January. Weak to moderate white emissions with occasional grey ash clouds were released from Crater 2. "During 1-7 October, activity at Crater 2 consisted of weak-strong ash emission accompanied by explosion and rumbling sounds heard 10 km away. Distinctly stronger activity was evident on the 23rd. During the latter part of the month the plumes were stronger, rising 700-900 m above the crater and drifting SE and SW. During 15-19 February observers heard occasional weak booming noises. Several periods of harmonic tremor were recorded but the source was not determined.". Occasional weak, deep rumbling noises were heard on 3 consecutive days 12-14 April. Occasional loud to low explosions, some of which were accompanied by light ashfall, were heard during the second and last week of the month. Roaring and rumbling sounds were heard on 2 and 3 December; fluctuating glow was observed at night. Incandescent lava fragments were ejected to 300 m in horizontal distance. Occasional ash-laden gray-brown and forceful dark gray emissions were produced on 10 and 14 January, respectively. "Ashfalls were reported in inhabited areas about 10 km N and W of the volcano on about 50% of days during the first half of October. This heralded a few days of increased ash emissions, with some forcefully expelled light gray/brown clouds on the 15th. Crater 3 released thin white vapor accompanied by wisps of blue vapor on 12, 14, 21, and 27 April. A very small plume and a hot spot were visible on satellite imagery. The lava looked similar to previous flows, which have consisted of low-silica andesite. Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that during 8-9, 11, and 13 December ash plumes from Langila rose to altitudes of 1.8-2.4 km (6,000-8,000 ft) a.s.l. . In Brief Numerous explosions (3-30/day) were recorded throughout January. Ashfall damaged small food gardens and contaminated some water sources. The larger explosions rose several hundred meters above the crater rim, dropping ash on the downwind (N-NW) side of the volcano. on two days. ", New lava flow, incandescent tephra, ash emission. . solid core of discernible ash up to [10.7 km altitude].". One of two 28 July 2011 weak anomalies were located close to the crater, but the other was further NE. Grey ash clouds were seen on a few days at the beginning and end of October, and white vapour emissions were observed occasionally. Explosion sounds were heard on only two days (11th and 20th) and no sightings of crater incandescence were made. During June, white-gray or brown ash and vapor clouds emitted from Crater 2 rose to several hundred meters above the crater rim. Up to 12 explosions per day were recorded, and periods of strong volcanic tremor were produced by prolonged gas venting. Seismicity remained low throughout the month.". 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