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Strong Strombolian explosion on Feb 15th (INGV Catania)
: Strombolian activity from the summit vents continues slowly to increase but always below normal levels.
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Strong Strombolian explosion on Feb 15th (INGV Catania)
Strombolian activity from the summit vents continues slowly to increase but always below normal levels.
Wed, 25 Feb 2015, 06:00
KVERT reported that a moderate explosive eruption at Zhupanovsky continued during 20-27 February. Satellite images detected a thermal anomaly over the volcano during 20-22 and 25-26 February. Ash clouds rose to altitudes of 3-3.5 km (10,000-11,500 ft) a.s.l. and drifted about 250 km E and SE.
Wed, 25 Feb 2015, 06:00AVO reported that seismicity at Shishaldin continued to be elevated over background levels during 25 February-3 March. Elevated surface temperatures, sometimes that were highly elevated, were detected in satellite images almost daily. The webcam recorded minor degassing on 25 February and a low-level plume during 28 February-1 March.
Wed, 25 Feb 2015, 06:00
KVERT reported that during 20-27 February lava-dome extrusion onto Sheveluch's N flank was accompanied by incandescence, hot block avalanches, and fumarolic activity. Strong explosions during 20-21, 24, and 26 February generated ash plumes that rose to altitudes of 6-7 km (19,700-23,000 ft) a.s.l. and drifted 580 km E and NE during 20-21 and 24-26 February.
Wed, 25 Feb 2015, 06:00During 25 February-3 March IG reported moderate seismic activity including explosions, long-period earthquakes, harmonic tremor, and occasional tremor at Reventador; cloud cover often prevented visual observations. On 25 February a thermal anomaly was detected from the lava flow on the SW flank. On 27 February continuous emissions of gas and ash rose 1 km and drifted SW.
Wed, 25 Feb 2015, 06:00
According to news articles, the eruption at Nishinoshima continued at least through 27 February. The Japan Coast Guard noted that the island had grown to about 2.46 square kilometers and the active cone was about 100 m tall. Explosions occurred several times per minute and ash-and-gas plumes rose 1.2 km.
Wed, 25 Feb 2015, 06:00KVERT reported that during 20-27 February a Strombolian and Vulcanian eruption at Klyuchevskoy continued. Incandescence at the summit was visible and bombs were ejected 150 m above the crater. Explosions generated ash plumes that rose to altitudes of 5-6 km (16,400-19,700 ft) a.s.l.
Wed, 25 Feb 2015, 06:00
During 25 February-3 March HVO reported that Kilauea's 27 June NE-trending lava flow continued to widen with several small breakouts across the interior and edges of the lobes, upslope of the leading front. These breakouts included a lobe extending to the N, which remained about 1.6 km upslope from Highway 130, and a lobe on the S side of the flow, about 870 m upslope of Malama Market. The most distal lobe of lava remained about 500 m above Highway 130, near police and fire stations.
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Wed, 25 Feb 2015, 06:00KVERT reported that during 20-27 February moderate seismicity at Karymsky was detected. Satellite images showed a thermal anomaly over the volcano on 21 and 24 February, and ash plumes drifting 254 km ENE on 23 February. The Aviation Color Code remained at Orange.
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Wed, 25 Feb 2015, 06:00
Based on satellite images, Mexico City MWO, and a webcam, the Washington VAAC reported that during 25 February-3 March multiple gas-and-ash plumes per day from Colima rose to altitudes of 5.2-7.6 km (17,000-25,000 ft) a.s.l. and drifted in multiple directions. Ash drifted as far as 370 km SE (on 28 February).
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Wed, 25 Feb 2015, 06:00SVERT reported that satellite images over Snow, a volcano of Chirpoi, showed gas-and-steam emissions on 23 February and a thermal anomaly on 23 and 25 February. Cloud cover obscured views on other days during 23 February-2 March. The Aviation Color Code remained at Yellow.
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Wed, 25 Feb 2015, 06:00
In a report from 4 March SVERT noted that weak steam-and-gas emissions from Chirinkotan were observed in January and February but that volcanic activity was not currently observed; the Aviation Color Code was lowered to Green.
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Wed, 25 Feb 2015, 06:00The Icelandic Met Office reported that the eruption at Bárdarbunga's Holuhraun eruptive fissure, which began on 31 August 2014, had ended on 27 February; the Aviation Colour Code was lowered to Yellow. During an overflight scientists did not see any incandescence from the vents, although gas emissions persisted. Radar measurements showed that no increase in the extent of the lava field had been detected since mid-February.
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Wed, 25 Feb 2015, 06:00
JMA reported that eight explosions from Showa Crater at Aira Caldera's Sakurajima volcano ejected tephra as far as 1,300 m during 23-27 February. An explosion on 24 February generated an ash plume that rose 3.3 km. Incandescence from the crater was visible at night on 25 and 27 February, and inflation continued to be detected.
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Wed, 25 Feb 2015, 06:00OVDAS-SERNAGEOMIN reported that on 28 February a significant increase in seismicity at Villarrica was detected along with Strombolian explosions and tephra ejected 1 km away. Seismicity continued to increase and on 2 March indicated that the lava lake level had risen. Strombolian explosions continued and ejected tephra as far as 600 m onto the flanks.
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Wed, 25 Feb 2015, 06:00
Based on a SIGMET notice of a pilot observation, the Washington VAAC reported that on 26 February an ash plume from Sangay rose to an altitude of 7.3 km (24,000 ft) a.s.l. Satellite images only detected an intermittent thermal anomaly. According to the VAAC, on 27 February IG reported a lava flow and a possible diffuse ash plume that rose to an altitude below 5.5 km (18,000 ft) a.s.l. within 15 km of the summit.
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Wed, 25 Feb 2015, 06:00CENAPRED reported that a series of explosions at Popocatépetl from 2250 on 24 February to 0345 on 25 February was accompanied by periods of tremor and Strombolian activity which ejected incandescent material as far as 700 m onto the NE and SE flanks. Additional explosions (19) were detected on 25 February. Ashfall was reported in San Martín Texmelucan, San Matías Tlalancaleca, San Salvador el Verde, Santa Rita Tlahuapan, Tlaltenango, Huejotzingo, San Miguel Xoxtla, Domingo Arenas, Santa María Atexcac, and the Puebla airport.
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Wed, 25 Feb 2015, 06:00
In a special notice, INSIVUMEH reported that an effusive eruption at Fuego that began on 28 February produced 300-400-m-high lava fountains. One lava flow traveled 1.6 km S down the Trinidad drainage and another traveled 600 m W down the Santa Teresa drainage. The eruption produced rumbling and train sounds audible up to 12 km away.
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Wed, 25 Feb 2015, 06:00KVERT reported that satellite images showed no activity at Chikurachki after 19 February. The Aviation Color Code was lowered to Green on 26 February.
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Wed, 25 Feb 2015, 06:00
On 2 March the Vanuatu Geohazards Observatory reported that activity at Ambrym had slightly decreased but remained elevated. The Alert Level was lowered to 2 (on a new scale of 0-5). Areas deemed hazardous were near and around the active vents (Benbow, Maben-Mbwelesu, Niri-Mbwelesu and Mbwelesu), and in downwind areas prone to ashfall.
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Fri, 20 Feb 2015, 21:00
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Ash plume from Shiveluch volcano today (MTSAT-2 image / VAAC Tokyo)
: An eruption today produced an ash plume that rose to estimated 25,000 ft (7.5 km) altitude, detected on infrared satellite imagery (VAAC Tokyo).
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Fri, 20 Feb 2015, 16:34
A high-level eruption at 15:22 UTC (22:22 local time) with an ash plume rising to 45,000 ft (15 km) altitude was reported by Darwin VAAC short time ago.
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Fri, 20 Feb 2015, 16:24
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Ash plume from Shiveluch volcano today (MTSAT-2 image / VAAC Tokyo)
An eruption today produced an ash plume that rose to estimated 25,000 ft (7.5 km) altitude, detected on infrared satellite imagery (VAAC Tokyo).
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Fri, 20 Feb 2015, 16:02
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Sinabung's new lava lobe in the crater (image: Leopold Kennedy Adam @LeopoldAdam / twitter)
Pyroclastic flows continue to occur, as a new lobe of viscous lava is growing in the summit crater. The collapses during the past 2 weeks and their associated flows have strongly changed the morphology of the crater, removing most of the existing dome, while this is now being replaced by fresh material.
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Thu, 19 Feb 2015, 21:00
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Incandescent avalanches from an explosion at Klyuchevskoy this morning
: The strombolian-type activity from the summit crater of the volcano continues at moderate levels, with little changes over the past week.
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Thu, 19 Feb 2015, 18:11
36 explosions occurred from Showa Crater during 9-13 February and ejected tephra as far as 1,300 m.
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Thu, 19 Feb 2015, 18:09
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Incandescent avalanches from an explosion at Klyuchevskoy this morning
The strombolian-type activity from the summit crater of the volcano continues at moderate levels, with little changes over the past week.
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