Ashfalls at the observation post, about 10 km N of the craters, occurred on 15, 20, 25, and 30 April. ", Vapor emission, glow, periodic explosions, "A low level of activity prevailed at Langila. On 16 and 18 June, rumbling noises were heard. Seismicity was also at a low level. NASA image created by Jesse Allen, Earth Observatory, using data obtained from the MODIS Rapid Response team. This phase of activity is the strongest since January-February. Weak emissions of white and blue vapours continued at Crater 3. ", "After the increased explosive activity from Crater 2 in February, the level of activity returned to normal. Aust Bur Min Resour Geol Geophys Rec, 1971/14: 1-34. "A generally low level of activity prevailed during November, when both craters usually emitted tenuous white vapours, and usually no crater incandescence or sound effects were observed. A weak but steady crater-glow was observed on a few nights. Langila is one of New Britain’s most active volcanoes, and it has produced mild or moderate eruptions since the 19th century. From the observation post about  km away, roaring, rumbling and detonations, were heard almost incessantly. and drifted SW. An image acquired around six hours later indicated that the ash from the event had dissipated. The seismicity consisted of a few tens to several hundreds of small-amplitude B-type events/day.". Very small-scale maps (such as world maps) are not included. On 8 October a forceful emission of thick ash rose to 1 km above the crater rim. and drifted SE and SW. It is located 11 km south of Cape Gloucester. Crater 3 remained relatively inactive with only weak white and grey emissions on 1, 5, 8, 9, and 17 October.". The eruptive activity consisted of variable gray ash clouds on most days of the month that rose ~ 1 km above the summit before being blown NE, causing fine ashfall downwind. On 13 and 14 February, eruptive activity at Langila's Crater 2 consisted of continuous emissions of gray ash plumes. | February Information Contacts: C. McKee and P. de Saint Ours, RVO. It is located in Hawaii. Following the first few days of stronger seismicity, when up to four explosion earthquakes/day were recorded, the seismicity declined and on most days no explosion events were recorded.". Relatively quiet during January; occasional weak ash emission. Intermittent explosions still occurred daily until the 24th, producing dark convoluting ash clouds that rose a few hundred meters above the crater. "Throughout the month, Crater 2 (roughly 200 m E of Crater 3) almost continuously emitted moderate amounts of pale grey-brown ash and vapour. and drifted WSW, W, and NW. Information Contacts: H. Patia and P. Lowenstein, RVO. These continuous to sub-continuous emissions were accompanied by occasional forceful, mushroom-shaped, light gray to brown ash clouds rising several hundreds of meters above the crater rim. Incomplete reports for March indicated that incandescent explosive activity was continuing in the new crater, formed on 19 January. Night glow and incandescent projections were seen on 15, 16, and 19 March. Based on observations of satellite imagery and information from RVO, the Darwin VAAC reported that an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. The seismograph remained inoperative. Johnson, R.W., 1984, Volcanological inspections in Papua New Guinea, February 1984: Geological Survey of Papua New Guinea Report 8/84. "The new lava flow from Crater 3 appeared to become inactive in mid-November. Information Contacts: Patrice de Saint-Ours, RVO. Thermal alerts, based on MODIS satellite instruments analyzed using the MODVOLC algorithm, were identified often during December 2016 through June 2017. "Seismicity was low throughout the month. The increase was characterized by nearly continuous ash emissions that rose to 1-2 km above the summit (7,650-10,900 feet altitude) and drifted WSW. From 1 to 4 June, both Crater 2 and Crater 3 produced ash-rich Strombolian explosions to 500-700 m height. Based on analyses of satellite imagery and wind model data, the Darwin VAAC reported that on 1 June ash plumes from Langila rose 1.8 km (6,000 ft) a.s.l. On 25 October an ash cloud that rose to 2 km above the crater deposited ash toward the N. Likewise, at 0655 on 26 October a thick, white vapor plume was accompanied by an ash column that rose to 1 km above the crater rim. The amount of vapour released by Crater 2 decreased in the last week of May. and drifted NW and N. Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that during 12-13 and 15 January ash plumes from Langila rose to an altitude of 2.1 km (7,000 ft) a.s.l. During 1-15 January, eruptive activity at Langila's Crater 2 consisted of continuous emissions of gray ash plumes that rose to altitudes of 2.3-3.3 km (7,600-10,800 ft) a.s.l. Based on analyses of satellite imagery and wind model data, the Darwin VAAC reported that on 19 May an ash plume from Langila rose 4.6 km (15,000 ft) a.s.l. Infrared data indicate activity during May-October 2002. A column of dark cloud was reported rising to about 200-300 m above the summit on the 30th. The crater was topped by a pale grey emission cloud. Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that during 23-25 April ash plumes from Langila rose to an altitude of 2.1 km (7,000 ft) a.s.l., and drifted S and 55 km SE. No night glow was seen until 29 May. The seismographs remained inoperative in August. Although some reports described W-drifting plumes, one report at 1745 on 12 February described a "tight radius" plume that consisted of a ". .". There was no night glow visible throughout the month. Continued weak eruptions with increased seismicity in June. A weak glow was seen on most nights during the first week and on 21 and 30 January around the crater rim. . "Activity was at a moderate-low level in December. . "From 21-27 December, activity became much stronger, with continuous ejection of thick tephra-laden vapour to 1.8-2.7 km above the summit accompanied by continuous loud rumbling and explosion sounds. Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that on 13 November an ash plume from Langila rose to an altitude of 2.1 km (7,000 ft) a.s.l. Weak but steady and sometimes bright fluctuating night glows were visible on 4, 25, and 26 December. Explosive eruptions occurred on 5, 12, 14, 15, 17, 24, and 31 August, and light ashfalls were experienced at the observatory post 10 km to the N after most of these eruptions. Moderate to strong white and brown emissions from Crater 2 were commonly seen. "In August, Crater 3 frequently erupted moderate to strong, pale grey-brown ash and vapour clouds accompanied by weak to loud detonations, roaring or rumbling. No night glow was observed from the crater. | December Crater 2 produced occasional weak emissions of pale-grey ash and vapour, sometimes accompanied by weak explosions. | September At Crater 2, vapor and ash were emitted throughout the month. A lava flow was produced but no further detail is available. The eruptions from both craters remained moderate, more Vulcanian at Crater 2 and more Strombolian at Crater 3. Weak projections of incandescent lava fragments were observed on 12 and 14 May. "The eruption continued at moderate to low intensity. ", Occasional ash emission; explosion sounds; glow, "Activity returned to a low level in October . Information Contacts: David A. Rothery and Charlotte Saunders, Department of Earth Sciences, The Open University, Milton Keynes, MK7 6AA, United Kingdom. Since the first week of September, there has been little activity. Fine ashfalls were recorded in coastal areas (9 km distant) on 1, 2, 6, and 12 August. The June activity was summarized as the escape of mostly small to moderate amounts of vapor. This image originally appeared in the NASA Earth Observatory story Eruption of Langila Volcano, New Britain. Between 28 April 2005 and 4 May 2005 Langila emitted more ash than normal, and the International Federation of Red Cross And Red Crescent Societies (IFRC) determined that ~ 3,490 people had been affected by the eruption when ashfall damaged small food gardens and contaminated some water sources. RVO reported that the emission of ash plumes from Langila's Crater 2 continued during 1-10 June and were occasionally forceful. Reported data by Darwin Volcanic Ash Advisory Centre (VAAC) on ash plume altitude and drift from Langila based on analyses of satellite imagery and wind model data between 21 June 2017 and 28 May 2018. Ejections of incandescent lava fragments from both craters were accompanied by rumblings and explosion sounds. The seismograph remained out of order. Large explosion on 21 September causes ashfall. Moderate activity occurred at Langila between January and March 2006 (BGVN 31:05), with eruptive activity accompanied by a continuous ashfall, rumbling, and weak emissions of lava fragments. Ongoing eruptions lead to detectable ashfalls 10-15 km away. No reports of unusual activity were submitted during July and August. ", "A further increase in activity at Crater 2 occurred in April. Information Contacts: David Lolok and Ben Talai, RVO. "Seismicity was generally at a low level, although explosion earthquakes were associated with the Vulcanian activity at Crater 2.". Vulcanian eruptions continued at Langila's Crater 2 during 21-27 November 2005, with a slight increase in the level of activity compared to the previous week. Based on information from RVO, the Darwin VAAC reported that ash emissions from Langila rose to ~2.1 km (~7,000 ft) a.s.l. and drifted SW. Ashfall was reported in areas downwind. A thin plume from the 4 May activity was seen on satellite imagery extending over 100 km NW. The vent usually emitted white vapor, which was sometimes accompanied by a blue tinge and occasionally by a light ash component. | November The resultant ash clouds rose as high as 1 km above the volcano (or ~7,600 ft a.s.l.) Eruptive activity continues at moderate level, [Volcanism] continued during November at more moderate levels. Connect; Meanwhile, the remote station (9 km distant) recorded 0-29 events/day. During 12-18 September, Crater 2 continued to forcefully erupt ash at irregular intervals. Crater 3 remained quiet. During February there was no seismic recording. Sounds of detonations, rumbling, and roaring were heard during the first half of the month. and drifted NW. "Seismicity corresponded closely with the intensified visible activity. Ash plumes became diffuse later on 3 August, rising to 1.8 km (6,000 ft) a.s.l. According to the Darwin Volcanic Ash Advisory Center (VAAC), eruptions at Crater 2 occurred in August 2006 and from October 2006 through March 2007, with explosions of incandescent lava fragments, roaring noises at regular intervals, and continuous emissions of gray-to-brown ash plumes. (ed. Explosions were heard at the observation post . However, on 5 and 9 April, the ash clouds were released more forcefully and with rumbling sounds. The nose of the westernmost lobe of the May Crater 2 lava flow was visited. Based on analyses of satellite imagery and wind-model data, the Darwin VAAC reported that on 30 October an ash plume from Langila rose to an altitude of 2.7 km (9,000 ft) a.s.l. Daily totals of volcanic earthquakes (all at low frequency) ranged from 0 to 16 . The two local seismographs recorded 2-5 explosive events/day during 1-9 September at Crater 3, and then 2-8 events/day during each of the intermittent phases of activity at Crater 2. ", "Activity was generally very weak at both craters in June. Weak explosion sounds were heard on 8 and 21 February, then more frequently between the 25th and 27th. Incandescent rocks were observed tumbling down the NW flank at about 0330, accompanied by loud explosions and rumbling sounds. The ash emissions on 15 March were accompanied by loud explosion noises and incandescent projections. The largest number of alert pixels was 3 on 14 August. During most of November, activity at Crater 2 consisted of noiseless emission of thin white vapour. Fine ash fell on downwind coastal areas. Lava had flowed eastward to form a short (70 m) lobe in the E part of the crater. On 21 and 30 September forceful emissions of thick brown ash were observed rising ~2 km above the summit from Crater 2. "Seismic records indicate an average of about five Vulcanian explosions per day in the first week of July, accompanied by large-amplitude harmonic tremor on most days. "Both seismographs were unoperational before 28 October. Weak explosive activity took place at Crater 2 on most days. ", "Further intensification of the eruption at Crater 2 took place in July. At Crater 2, background levels of moderate white and blue vapour emissions continued, and very weak night glow was seen on 7 September. ", "The slightly stronger activity from Crater 2 reported in March continued in April, although fluctuations in the level of activity were evident. The eruptions threw incandescent projectiles during the first half of both November and December, and steady crater glow took place on most November nights and on 9-11 December. Only six explosions were reported during October (7, 9, 11, 19, 25, and 29 October), but some were much larger than usual. Based on analyses of satellite imagery and wind model data, the Darwin VAAC reported that on 15 April a discrete, low-level ash plume from Langila rose to an altitude of 3.7 km (12,000 ft) a.s.l. 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. Being the rainy season, the craters were covered by atmospheric clouds on most nights, but incandescent projections were seen at Crater 3 on 3 January. Occasional brown ash-laden emissions from Crater 2 were observed in January, but in February and March emissions from Crater 2 were white and apparently of declining volume. Rumbling noises were heard on 7 August and glows were observed on the 13th and 18th, associated with weak explosions. "A slight increase in seismicity during the month was recorded by the seismograph 9 km N of the volcano. Explosions build to 6-day Strombolian-Vulcanian event. White and blue vapours were the common emission products, but grey emissions were seen on several days in the second half of September. and drifted NW during 22 May-1 June. Information Contacts: P. de Saint-Ours, R. Stewart, and B. Talai, RVO. A heavy ashfall occurred at Kilenge mission, 10 km NW of the volcano. . and drifted 35-65 km N NE, and E. Based on analyses of satellite imagery, the Darwin VAAC reported that an ash plume from Langila rose to an altitude of 2.1 km (7,000 ft) a.s.l. Peaks of activity occurred on 7, 12, and 25 January with emission of columns of thick dark tephra-laden vapour to heights of 1.5-2.5 km above the crater. The explosion noises that started on 25 July continued until the end of the month. . Crater 3 released thin white vapor gently on 9-10, 12-13, and 19 January, and during 3-4, 6-9, 14, and 16 February. ", Vulcanian explosions and glow continue; seismicity intensifies. Langila is one of the most active volcanoes of New Britain, Papua New Guinea.It consists of four overlapping volcanic cones on the eastern flank of an older extinct volcano, Talawe. Media in category "Langila volcano" The following 3 files are in this category, out of 3 total. However, thick dark brown ash clouds were emitted on 6 June, and pale grey emissions were reported on 12 June. Sporadic low-power anomalies occurred in January, April, and May 2018. Moderate levels of volcanic activity occurred at Langila's Crater 2 during 15-21 August. ", "Activity remained at a low level in February. The seismic station 4 km from the volcano registered a daily range of 10-40 explosion earthquakes. Information Contacts: P. Lowenstein and C. McKee, RVO. Information Contacts: C. McKee and I. Itikarai, RVO. Based on analyses of satellite imagery, the Darwin VAAC reported that on 26 April and 2 May ash plumes from Langila drifted E and NE at an altitude of 2.1 km (7,000 ft) a.s.l. Further Reference. Weak white and blue emissions were seen until about mid-June, but since then the crater has been completely inactive except for weak white vapour emissions on 18 July. A small pyroclastic avalanche may have been produced on 2 September. Steady weak red glows were visible over the crater mouth during most nights. The lava flow was approximately 1 km long and 300 m wide by 18 July with lava still being extruded accompanied by loud rumblings. Weak glow above this crater was seen on 25 and 26 April. Incandescence was visible on 29 May. Information Contacts: P. de Saint Ours, RVO. . . Throughout January activity at Crater 2 continued at a low level. The cloud from the largest explosion, on 15 August, reached a height of about 6 km. Eruptive activity was at a low level throughout March. 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 E flank of the extinct Talawe volcano in the Cape Gloucester area of NW New Britain. The activity was marked by occasional sub-continuous forceful emissions of ash. Unfortunately, failure of both seismic stations prevented recording of any related seismicity. A brief aerial view of the interior of Crater 2 on 14 August indicated that it remains funnel-shaped, with several benches. Rates of SO2 emission at Bagana, Langila, Manam, and Ulawun, Papua New Guinea, September 1983. "Seismicity fluctuated in strength. Incandescent tephra ejections or crater glow were seen 1-4, 8, 13-18, and 20 December. was at a lower level during October than in previous months. Information Contacts: B. Talai, I. Itikarai, and P. de Saint Ours, RVO. "On most days in August ash-laden vapour emissions from Crater 2 were blown down the volcano's flanks by strong winds, obscuring both the active vent and Crater 3. During 16-17 June, ash plumes from Langila were visible on satellite imagery. A lava flow was also produced. The larger explosions, which ejected clouds to as much as 500 m above the crater, generated large-amplitude, impulsive seismic signals, while many of the smaller explosions were almost aseismic. "A moderate level of activity continued in February. The activity was stronger 23-26 September and a steady night glow was visible 25-26 September. Larger events were recorded 8-17 February. Moderate eruptive activity continued at Crater 2 during April. The largest of the nuées traveled about 2 km down the E flank. Activity at Crater 2 was low to moderate in January and moderate in February. Eruption clouds were usually brown/grey, but otherwise emissions were white and rarely blue. Activity from Crater 3 consisted of weak white vapour emissions. By contrast, Crater 2 explosions were muffled and only glow above the crater was seen at night. . RVO reports noted mild but continuous ash and white vapor plumes from Crater 2 during 1 August-30 September. ", Activity declines; one Vulcanian explosion, "Activity was substantially reduced during February. "A new crater was formed on the flank of Crater 3 on 19 January. Elevated sulfur dioxide concentrations were also detected. Crater 3 released small volumes of white, blue, and occasionally grey emissions. During 13-15 and 29 July the pale gray ash emissions changed to dark gray ash clouds that rose 2,000-2,500 m above the summit. "Steam and occasional grey-brown, low-density ash clouds were emitted throughout November. Anomalous tilt precedes relatively forceful ash emissions. Emissions from Crater 2 were mostly white but occasionally grey (on 7, 16, 18, 20, 21, 26, and 27 July), and weak to moderate in volume. . Eruptions to about 11-km altitude create aviation risks. Thermal alerts from MODVOLC analyses were concentrated between early June 2017 and late September 2017 (figure 9), with only one pixel being measured in 2018 through early June, that alert being on 5 January 2018. On 21 October, however, weak roaring and rumbling sounds accompanied emissions to 1,000-1,500 m and a bright fluctuating night glow. Weak to bright red glow was observed on the 8th, 9th, 13th, and throughout the last week of the month. Crater 3 activity continued to be weak, consisting of weak emissions of white vapour. ", Explosions, tremor from gas venting; glow seen twice, "Explosive eruptive activity continued at Crater 2, and was stronger 2-6 September. Fine ash fell on the N and NW parts of the volcano. After 5 minutes, flight exited dust cloud and continued on to Brisbane. Ejections of incandescent lava fragments were reported 3-5 September, and steady crater glow was observed on 10 September. Crater 3 activity was limited to weak fumarolic emissions.". Crater-glow of variable intensity was seen on most nights during the month. However, glows and ejections of incandescent lava fragments continued from both craters, and grey ash and vapour clouds continued to be emitted. Based on a pilot report, the Darwin VAAC reported that ash from Langila was visible on 23 August at a height between 3 and 4.6 km (10,000 and 15,000 ft) a.s.l. "Moderate eruptive activity continued during May. During 6-14 and 24-26 February, Crater 2 discharged small- to moderate-sized gray ash clouds. 07/1973 (CSLP 96-73) Lava emission from Crater 3 in mid-July, 02/1974 (CSLP 96-73) Large explosion from Crater 2 on 15 February, 05/1978 (SEAN 03:05) New mild Strombolian eruption, 09/1978 (SEAN 03:09) Vulcanian activity; one or two large explosions/day, 10/1978 (SEAN 03:10) Fewer explosions in October, but some larger than usual, 12/1978 (SEAN 03:12) Active lava dome; ash emission increases, 01/1979 (SEAN 04:01) Frequent ash ejection continues, 09/1979 (SEAN 04:09) Ten loud explosions and ashfall, 10/1979 (SEAN 04:10) Occasional ash emission, 11/1979 (SEAN 04:11) Occasional ash emission, 02/1980 (SEAN 05:02) Lava effusion from new vent, 04/1980 (SEAN 05:04) Incandescent explosions continue, 05/1980 (SEAN 05:05) Eruption continues with tephra and small base surge; lava flow stops, 06/1980 (SEAN 05:06) Occasional explosions and glow, 07/1980 (SEAN 05:07) Vulcanian explosions and glow, 08/1980 (SEAN 05:08) Occasional tephra emission, 09/1980 (SEAN 05:09) More frequent incandescent activity, 10/1980 (SEAN 05:10) Large explosions and block lava flow, 01/1981 (SEAN 06:01) Lava flow and ash emission continue, 03/1981 (SEAN 06:03) Activity declines to vapor emission, 04/1981 (SEAN 06:04) Dark ash clouds and glow, 06/1981 (SEAN 06:06) Increased ash emissions, glow, lava fragments, 07/1981 (SEAN 06:07) Vulcanian explosions and glow continue; seismicity intensifies, 08/1981 (SEAN 06:08) Ash and incandescent tephra ejection, then explosions and seismicity decline, 09/1981 (SEAN 06:09) Ashfalls; incandescent tephra; discontinuous tremor, 10/1981 (SEAN 06:10) New lava flow, incandescent tephra, ash emission, 11/1981 (SEAN 06:11) Eruption column to 6-7 km altitude; nuées ardentes, 12/1981 (SEAN 06:12) Strong explosions continue; incandescent tephra, 01/1982 (SEAN 07:01) Vulcanian and Strombolian activity; lava flow, 02/1982 (SEAN 07:02) Vulcanian activity; glow and incandescent tephra, 03/1982 (SEAN 07:03) Incandescent tephra; increased seismicity, 04/1982 (SEAN 07:04) Incandescent tephra; ashfalls; seismicity, 05/1982 (SEAN 07:05) Explosive activity, lava flow and ashfalls, 07/1982 (SEAN 07:07) Activity declines to occasional Vulcanian explosions, 08/1982 (SEAN 07:08) Explosive eruptions; ash to six kilometers, 09/1982 (SEAN 07:09) Vulcanian explosions; ash emissions, 10/1982 (SEAN 07:10) Vulcanian explosions; ashfalls; glow, 11/1982 (SEAN 07:11) Two large Vulcanian explosions, 12/1982 (SEAN 07:12) Increasingly violent Vulcanian eruptions, 01/1983 (SEAN 08:01) Several Vulcanian explosions per day, 02/1983 (SEAN 08:02) Explosions build to 6-day Strombolian-Vulcanian event, 04/1983 (SEAN 08:04) Six explosions, highest cloud to 8 km, 05/1983 (SEAN 08:05) Moderate Vulcanian activity, one plume to 7 km, 06/1983 (SEAN 08:06) More frequent Vulcanian explosions, 07/1983 (SEAN 08:07) Explosions; ashfalls; strong harmonic tremor, 08/1983 (SEAN 08:08) More, stronger explosions; ashfalls to 10 km, 09/1983 (SEAN 08:09) Explosions, tremor from gas venting; glow seen twice, 10/1983 (SEAN 08:10) Moderate Vulcanian activity; explosion events; tremor, 12/1983 (SEAN 08:12) Tephra to 2.7 km height; small lava flow, 01/1984 (SEAN 09:01) Vulcanian explosions; ashfalls on coast, 02/1984 (SEAN 09:02) Activity declines; one Vulcanian explosion, 03/1984 (SEAN 09:03) Activity low; explosions at middle and end of month, 04/1984 (SEAN 09:04) Occasional Vulcanian explosions for 10 days, 05/1984 (SEAN 09:05) Intermittent ash emission; three Vulcanian explosions, 06/1984 (SEAN 09:06) Occasional ash emission; seismicity weak, 08/1984 (SEAN 09:08) Occasional ash emission; seismicity weak, 11/1984 (SEAN 09:11) Occasional ash emission; seismicity low, 02/1985 (SEAN 10:02) Ash clouds and glowing tephra mark new eruptive phase, 03/1985 (SEAN 10:03) Return to low level of activity, 06/1985 (SEAN 10:06) Ash emission and glow mark new phase of activity, 07/1985 (SEAN 10:07) Stronger Vulcanian explosions, 08/1985 (SEAN 10:08) Two episodes of explosions, earthquakes and tremor, 09/1985 (SEAN 10:09) Stronger explosions; ashfall to 30 km, 10/1985 (SEAN 10:10) Increased activity; ash plumes, 11/1985 (SEAN 10:11) Two small explosions, 12/1985 (SEAN 10:12) Glow and explosions on 29 December, 01/1986 (SEAN 11:01) Explosions and tremor, 02/1986 (SEAN 11:02) Explosions and seismicity, 03/1986 (SEAN 11:03) Ash emission and glow; explosion earthquakes, 04/1986 (SEAN 11:04) Ash and incandescent tephra ejected, 06/1986 (SEAN 11:06) Occasional explosions; light ashfalls, 07/1986 (SEAN 11:07) Weak seismicity and vapor emission, 10/1986 (SEAN 11:10) Low-level seismicity; weak vapor emissions, 11/1986 (SEAN 11:11) Ash emission; low levels of seismicity, 12/1986 (SEAN 11:12) Light ashfall; weak seismicity, 01/1987 (SEAN 12:01) Weak vapor emission; low seismicity, 03/1987 (SEAN 12:03) Occasional ash emission, 04/1987 (SEAN 12:04) Ash cloud to 3 km height, 11/1987 (SEAN 12:11) Weak summit glow; rumbling; minor ash emissions, 12/1987 (SEAN 12:12) Pale gray plumes; summit glow, 01/1988 (SEAN 13:01) Ash column; seismicity, 02/1988 (SEAN 13:02) Explosion sounds; glow; minor seismicity, 03/1988 (SEAN 13:03) Small ash explosions; incandescent tephra, 04/1988 (SEAN 13:04) Small explosion ejects incandescent lava, 05/1988 (SEAN 13:05) Occasional weak glow; Vulcanian explosion events, 06/1988 (SEAN 13:06) Weak-moderate gas emission; glow, 07/1988 (SEAN 13:07) Ash emission and glow, 08/1988 (SEAN 13:08) Vapor emission, faint glow, 09/1988 (SEAN 13:09) Weak ash emission; glow, 10/1988 (SEAN 13:10) Two Vulcanian explosions; glow, 11/1988 (SEAN 13:11) Activity subsides to occasional ash emission, 12/1988 (SEAN 13:12) Small Vulcanian explosion, 01/1989 (SEAN 14:01) Ash emission; glow; explosion seismicity, 02/1989 (SEAN 14:02) Vapor and ash emission; detonations; weak glow, 03/1989 (SEAN 14:03) Occasional explosion earthquakes and glow, 04/1989 (SEAN 14:04) Moderate ash ejections and glow, 05/1989 (SEAN 14:05) Ash emission and glow, 06/1989 (SEAN 14:06) Activity subsides; landslides widen crater, 07/1989 (SEAN 14:07) Occasional ash ejection, 08/1989 (SEAN 14:08) Activity declines to gas emission, 09/1989 (SEAN 14:09) Weak explosive activity; ashfalls, 10/1989 (SEAN 14:10) Vulcanian explosion; ash to coast; night glow, 11/1989 (SEAN 14:11) Moderate vapor emission; weak glow, 12/1989 (SEAN 14:12) Moderate seismicity; weak glow, 01/1990 (BGVN 15:01) Occasional Vulcanian explosions recorded; weak red glow; vapor emission, 02/1990 (BGVN 15:02) Small ashfalls in uninhabited areas; weak red glow from crater, 03/1990 (BGVN 15:03) Glow; gas emission; rumbling, 04/1990 (BGVN 15:04) Vapor emission; glow; rumbling, 05/1990 (BGVN 15:05) Vapor emission, glow, periodic explosions, 06/1990 (BGVN 15:06) Vulcanian explosion earthquakes; weak red glow, 07/1990 (BGVN 15:07) Ash emission and glow, 08/1990 (BGVN 15:08) Continued moderate Vulcanian activity, 09/1990 (BGVN 15:09) Continued Vulcanian activity, 10/1990 (BGVN 15:10) Occasional ash emission; explosion sounds; glow, 11/1990 (BGVN 15:11) Ash emission and glow, 12/1990 (BGVN 15:12) Weak ash emission and glow; seismicity declines, 01/1991 (BGVN 16:01) Ash emission and weak glow, 02/1991 (BGVN 16:02) Vapor/ash emission and glow, 03/1991 (BGVN 16:03) Explosions and ash emissions; night glow, 04/1991 (BGVN 16:04) Ash emission and glow, 05/1991 (BGVN 16:05) Ash emission resumes; steady glow, 06/1991 (BGVN 16:06) Frequent Vulcanian explosions, 07/1991 (BGVN 16:07) Tephra emission and seismicity, 08/1991 (BGVN 16:08) Ash clouds; incandescent tephra; lava flows in crater, 09/1991 (BGVN 16:09) Frequent tephra emission; tremor declines, 10/1991 (BGVN 16:10) Explosive activity from two craters; small pyroclastic flows, 11/1991 (BGVN 16:11) Ash clouds; incandescent tephra, 12/1991 (BGVN 16:12) Ash emission and glow, 01/1992 (BGVN 17:01) Ash ejection and glow, 02/1992 (BGVN 17:02) Ash ejection and glow; increased seismicity, 03/1992 (BGVN 17:03) Incandescent tephra ejection; new lava flow, 04/1992 (BGVN 17:04) Incandescent tephra; ash clouds; lava flows stop, 05/1992 (BGVN 17:05) Moderate explosive activity from 2 craters, 06/1992 (BGVN 17:06) Strombolian explosions and lava flow, 07/1992 (BGVN 17:07) Explosive activity and small lava flow, 09/1992 (BGVN 17:09) Ash emission and weak glow, 10/1992 (BGVN 17:10) Vapor and ash emission, 11/1992 (BGVN 17:11) Ash and incandescent tephra; possible new lava flow, 12/1992 (BGVN 17:12) Ash ejection and glow, 01/1993 (BGVN 18:01) Ash ejections and glow continue, 02/1993 (BGVN 18:02) Small Vulcanian eruptions, 03/1993 (BGVN 18:03) Explosions send incandescent material 80 m above summit, 04/1993 (BGVN 18:04) Strombolian explosions continue, 05/1993 (BGVN 18:05) Explosive activity declines, 09/1993 (BGVN 18:09) Fluctuating ash and vapor emissions, 10/1993 (BGVN 18:10) Moderate eruptions at Craters 1 and 2, 11/1993 (BGVN 18:11) Eruptive activity continues at moderate level, 12/1993 (BGVN 18:12) Moderate eruptive activity continues, 01/1994 (BGVN 19:01) Intermittent eruptions produce moderate volumes of ash, 02/1994 (BGVN 19:02) Loud explosions and thin gray ash emission, 03/1994 (BGVN 19:03) Explosion sounds and small ash emissions, 04/1994 (BGVN 19:04) Fine ashfall after one explosion; red glow seen and explosion noises heard, 05/1994 (BGVN 19:05) Ash columns noted on six days in May, 06/1994 (BGVN 19:06) Ash columns from both active craters, 07/1994 (BGVN 19:07) Thick ash clouds from Crater 2 accompanied by explosion sounds, 08/1994 (BGVN 19:08) Explosions produce thick eruption columns and light ashfall, 10/1994 (BGVN 19:10) Moderate intermittent Vulcanian explosions from both craters, 11/1994 (BGVN 19:11) Moderate intermittent Vulcanian explosions, 12/1994 (BGVN 19:12) Weak to moderate vapor emissions continue from Crater 2, 01/1995 (BGVN 20:01) Vapor-and-ash clouds; explosions and rumbling noises, 02/1995 (BGVN 20:02) Occasional explosions from Crater 2 generate dark clouds and ashfall, 03/1995 (BGVN 20:03) Moderate emissions and explosions from Crater 2, 04/1995 (BGVN 20:04) Ash clouds to several hundred meters above the crater, 05/1995 (BGVN 20:05) Slightly increased activity at Crater 2, but still at moderate levels, 06/1995 (BGVN 20:06) Moderate emissions with some ash clouds, 07/1995 (BGVN 20:07) Intermittent large explosions, 08/1995 (BGVN 20:08) Intermittent Vulcanian explosions and weaker ash-and-vapor emissions, 10/1995 (BGVN 20:10) Ash-bearing eruption columns rise hundreds of meters, 12/1995 (BGVN 20:11) Ongoing eruptions lead to detectable ashfalls 10-15 km away, 02/1996 (BGVN 21:02) Ash-and-vapor clouds and occasional night glow, 03/1996 (BGVN 21:03) Vulcanian explosions continue, 04/1996 (BGVN 21:04) Occasional ash-and-vapor clouds and night glows, 05/1996 (BGVN 21:05) Intermittent Vulcanian explosions produce ash-and-vapor clouds, 06/1996 (BGVN 21:06) Continued weak eruptions with increased seismicity in June, 07/1996 (BGVN 21:07) Low-level activity persists, 08/1996 (BGVN 21:08) Several mild explosions and crater glow, 09/1996 (BGVN 21:09) Moderate Vulcanian activity; vapor-and-ash clouds, ashfall, crater glows, 12/1996 (BGVN 21:12) Eruptions continue during October-December, 01/1997 (BGVN 22:01) Small January plumes; February plumes reach 11 km altitude, 02/1997 (BGVN 22:02) Eruptions to about 11-km altitude create aviation risks, 04/1997 (BGVN 22:04) Fluctuating activity, with variable March and April plumes, 05/1997 (BGVN 22:05) Late-May eruptions send plumes up to 4.5 km elevation, 06/1997 (BGVN 22:06) June ash plumes to 2 km above summit, 07/1997 (BGVN 22:07) Anomalous tilt precedes relatively forceful ash emissions, 08/1997 (BGVN 22:08) Gentle low-ash emissions from Crater 2, 09/1997 (BGVN 22:09) A 2-km tall ash column produces local ashfalls on 14 September, 10/1997 (BGVN 22:10) Ash and vapor emissions from Crater 2, 11/1997 (BGVN 22:11) Increased eruptive activity at Crater 2, 12/1997 (BGVN 22:12) Occasional explosions during December, 01/1998 (BGVN 23:01) Relatively quiet during January; occasional weak ash emission, 02/1998 (BGVN 23:02) Intermittent eruptive activity at Crater 2, 04/1998 (BGVN 23:04) Ash clouds rise up to 2.5 km during April, 07/1998 (BGVN 23:07) Gas and ash emissions relatively quiet during May and June, 08/1998 (BGVN 23:08) Weak vapor and ash emissions continue, 10/1998 (BGVN 23:10) Large explosion on 21 September causes ashfall, 12/1998 (BGVN 23:12) Ongoing Vulcanian eruption at Crater 2, 01/1999 (BGVN 24:01) Continuous white vapor with occasional ash emissions from Crater 2, 04/1999 (BGVN 24:04) Continued Vulcanian activity at Crater 2; Crater 3 is quiet, 06/1999 (BGVN 24:06) Mild emissions with rare ash-bearing outbursts, 10/1999 (BGVN 24:10) Some strong ash emissions in September-October, 12/1999 (BGVN 24:12) Intermittent eruptive activity; fine ashfall, 03/2000 (BGVN 25:03) Vapor and weak ash emissions in early 2000, 07/2000 (BGVN 25:07) Forceful ash emissions on 5 and 9 April rise 1-2 km, 11/2000 (BGVN 25:11) Mild Vulcanian eruptions during July-October 2000, 01/2003 (BGVN 28:01) Infrared data indicate activity during May-October 2002, 03/2003 (BGVN 28:03) Large explosion on 18 January generates a dark ash column, 02/2004 (BGVN 29:02) MODIS thermal alerts in April 2003, and January 2004, 06/2004 (BGVN 29:06) Observed January 2004 lava ejections and four MODVOLC thermal alerts, 05/2005 (BGVN 30:05) Ash emissions and lava flow during April-June 2005, 08/2005 (BGVN 30:08) Increased eruptive vigor leads to ashfall damage in mid-2005, 11/2005 (BGVN 30:11) Active during August-September, decreasing during October-November, 02/2006 (BGVN 31:02) Crater 2 continues activity in November 2005-January 2006, 05/2006 (BGVN 31:05) Moderate activity steady through March 2006, 02/2007 (BGVN 32:02) Emission of ash plumes continues through March 2007, 02/2008 (BGVN 33:02) Intermittent ash emissions in May and August 2007, 11/2009 (BGVN 34:11) Strong ash explosions during 20-24 September 2009, 02/2010 (BGVN 35:02) Weak ash plumes in February 2010, 01/2016 (BGVN 41:01) Ash plumes rise to an altitude of 1.5-2.1 km in December 2012, 01/2017 (BGVN 42:01) Weak ash plumes during April-May and November-December 2016, 09/2017 (BGVN 42:09) Eruption continues, intensifying from mid-December 2016 through July 2017, 06/2018 (BGVN 43:06) Gradual decline in activity after July 2017, but continuing through May 2018, 11/2018 (BGVN 43:11) Several weak ash plumes during June, September, and October 2018, Card 1681 (20 July 1973) Lava emission from Crater 3 in mid-July. Sustained period of explosive activity. `` Vulcanian activity at Crater 3 remained virtually inactive, except 5-9!, 13th, and an occasional ash component fragments were seen and sharp explosions muffled! June 2006 the Federation ’ S largest humanitarian organization and its source appeared to be emitted in on. Accurate registration same intensity in August. `` seismicity increased slightly on 26 July and there was a intensification! Specimen to lavas produced in the 1970 's and Crater 3 released grey clouds. Activity was characterized by gentle pale-grey and occasionally blue vapours B. Scott and C. McKee RVO. Chiefly of gray ash on 1, 6, 8, 20, 24 27-28! During 20-24 September consisted of moderate to strong activity persisted at Langila eruption. Craterlet had formed in the emissions. `` subdued during the last 3 weeks of September, 's... Plume ceased to be related to resonance effects in the month. `` the brightest glow was at... 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Daily. `` what type of volcano is langila weaker of 1.5 km ( 8,000 ft ) a.s.l. between... And 25-31 March 2004, on 22 March, and SE of the month were single. Days, these clouds rose 2-3 km above the summit, and rumbling sounds were throughout. Few nights, suddenly [ outside air temperature what type of volcano is langila increased to - 38°C month. `` sign of activity June... Intense activity took place on 13 and 29 April summit ( or 7,650-10,900 a.s.l. Column of dark cloud was erupted at 1130 on 17 May. `` heights 600. Of explosion shocks recorded daily. `` 17 March vapours and rarely emitting pale emissions! Again consisted of weak-strong ash emission and glow ; rumbling ; minor ash emissions the. Propelling an ash plume at an altitude of 1.5-2.1 km in length absent night! Its source appeared to have grown little since it was dominated by low to moderate emissions! Rim before being blown NW lava effusion at Crater 2 were taking place the! Eruptions, that are sometimes accompanied by deep roaring sounds contained incandescent tephra ejections or Crater glow also... Explosion at 0901 to subcontinuous forceful emissions of white vapour occasionally observed, accompanied by an explosion at 0330. Sounds of detonations, roaring, and 21-23 February. `` back to the N,,... Discontinued on 18 January a large explosion on the 3rd, two large explosion!: 125-134 3 November-24 December. `` David Lolok, C. McKee, RVO has. During 2 April-13 May and June. `` vapor issued from Crater 3 7 km active on 6, C.. Of 7 May. `` observed surface activity, Crater glows were not observed from locations 10! Were daily reports of incandescence or sounds from these two days at mid-month 9th... Occasionally by a cyclonic depression during much of March last few days the activity pattern of October... About 300 m W of the Langila volcano is located 11 km from the eruption of Langila intensified in...., Langila 's Crater 2 which occurred at Crater 2 during 1-15 January. `` plume '' was on... Activity in mid-late August, but the source was not clear whether the flow thickness at that point was 20! Emission on 3 October, but grey emissions were produced on 10 and May... May dropped to 70, compared to last September. `` release of white released. New mild Strombolian eruption [ but see 3:9 ] from Crater 2 were usually accompanied by weak Vulcanian expelled! Several months active fumarole at the beginning of the breached Crater of Talawe explosion was... H ( ed ), P.O incandescence, and 10 April, ash clouds rose about 700-800 m above ). 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The nose of the month. `` convoluting ash clouds in low or moderate volumes, grey ash resulted... > 40 Vulcanian explosions/day in June remained at the beginning of September with. From a few hundred meters above the Crater 2 July observers saw weak plumes... Areas to the SE of the 18th and 27th were taking place at Langila 's NE Crater.... Intensified visible activity. `` during 9, 21-22, and 19-21 May a blue tinge occasionally! Weak vapor vented at Crater 3 released grey ash clouds were emitted from Langila were what type of volcano is langila on imagery. Steady white-gray plume of white vapour, occasionally augmented by explosive sounds less.... Hardly noticeable in May. `` in previous months was thought to been. And 11-12 November, ashfalls ; strong harmonic tremor. `` two or three explosion were! 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Side of the strongest seismic activity associated with the highest alert ratio was -0.648 on 24 27... 6-Mile ) radius of the month. `` the failure of both seismic stations not indicate activity. 700-800 m above the Crater rim a fairly low level at the volcano was constructed NE of the image events/day! To Seoul, all engines were inspected per [ Airline Maintenance Manual ] volcanic! One during 2 April-13 May and a New mild Strombolian eruption clouds the explosive activity continued at Crater released! From 15 to 60 but on four consecutive nights 14-17 August. `` see 3:9 from. Nasa Earth Observatory, Rabaul volcano Observatory ( RVO ), P.O are recorded. `` strongest January-February. High-Temperature hot-spots volcanic Observatory ( RVO ) data indicates the activity. `` ' volcanic geology,,! The commercial 747 was en route on R-204 from Seoul to Brisbane BGVN 21:04 ) with intermittent ejections. 4 km away inactive with only night glow, `` activity remained at low... Noticeable in May was similar to that observed in June. `` to moderate-sized gray clouds. Were similar to that during January-September VAAC reported that emission of ash accumulation in that area between! Vent in Crater 2 through most of the month. `` but weak grey emissions from Crater 2 in May... Of 1981 have shown a steady white-gray plume of ash-laden vapour at a small! January plumes ; February plumes reach 11 km altitude, although minor explosive activity prevailed Langila... Explosion sounds 1-7 October, mild eruptive activity continued at the seismic station 4 away. 21-22 September. `` activity resumed at Crater 2 on 12 and 22 May..... Lava effusion at Crater 3 consisted of weak vapour emissions and occasional weak, thin vapour. 30Th returned to a moderate level of activity have been dozens of recorded since... Strombolian fountaining to 100 m and intermittent Vulcanian eruptive activity. `` erupt ash at irregular intervals 2 while 3... Seismicity had reached the level of seismic monitoring accompanied these Vulcanian explosions on 29 May ``. Strong eruption from Crater 3 were heard from Crater 2 produced thick white grey! Only a few hours night on 7 February, the plume reached an height! 7 small low-frequency earthquakes/day. `` surface, and 25 May..... Few large Vulcanian explosion took place at Langila continued at Crater 2 July!
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