Le Reventador continue à être doucement actif avec en cours des émissions de cendre et de vapeur faibles à modérées. L'Institut de Géophysique (Instituto Geofísico) rapporte une colonne de 2 km de haut de vapeur et la cendre s'élevant du volcan Reventador le 18 avril. Le nuage de cendre s'est déplacé au NO. ...plus [lire toutes]

Pendant le 25-26 mars l'incandescence a été observée dans la partie haute du volcan. Le 26 mars une émission de vapeur est montée à 500 m au-dessus du cratère. Basé sur l'analyse d'images satellites et des données sismiques, le VAAC de Washington a rapporté qu'un panache de cendre a dérivé sur 25 km au NNO le 26 mars. [lire toutes]

Suite petit lave sur le flanc nord-est, visible comme une anomalie thermique. Washington VAAC a signalé un panache de cendres qui a dérivé de 19 km SE le 16 février. IG a observé un panache de cendres, cette rose 100 m au-dessus du cratère, le 18 février. [lire toutes]

Nouvelle activité a été détectée sur 10-13 février. Les images satellites ont montré une anomalie thermique le 10 février. Basé sur les observations de pilotes, le VAAC de Washington a signalé un panache de cendres qui atteint une altitude de 5,2 km (17 000 pieds) d'altitude et des NW drifted. Le 11 février, les émissions de cendres et de vapeur a dérivé NW. sismicité augmentée le 12 février et une coulée de lave descend NE flanc pendant 12-13 février. Incandescence du cratère a été observée au cours des 10-13 février. [lire toutes]

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IG reported that staff conducting fieldwork at Reventador during 6-7 January observed constant emissions of gas-and-steam rising about 300 m above the crater and drifting WNW. The emissions originated from a growing lava dome that was a few tens of meters above the crater rim and almost filled the base. ...plus [lire toutes]

On Reventador's crater a slight incandescence was seen during 11-12 November and a high number of rockfalls was reported by seismic signals on 13-18 November. Probably from the lava-flow-fronts. [lire toutes]

The new eruption of Reventador volcano has calmed down, but continues, as news reports and the Istituto Geofisico report. [lire toutes]

Reventador volcano in Ecuador has started a new eruption on 10 November with spectacular strombolian activity and lava flows on both its north and south side. The, the fist after its last eruption in July, eruption followed increased seismicity that started at 13h00 on Saturday (8 Nov). ...plus [lire toutes]

A new eruption is reported from Reventador volcano. The Ecuadorian Institute of Geophysics (Istituto Geofisico, IG) reports eruptive tremor starting on 27 July from 15h00 local time. In the evening of that day, incandscence became visible from the summit of the volcano, indicating lava flows. An ash plume rose to 500-2000m and light ashfall was reported in the area around Olmedo. ...plus [lire toutes]

Infrequent, mostly small ash eruptions continue at Reventarod volcano. On 11 October, the volcano produced an ash plume that rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted S. [lire toutes]

Based on seismic interpretation, IG reported that lahars occurred on the flanks of Reventador on 15 and 19 June.  According to the Washington VAAC, the IG reported that activity on 18 June possibly produced ash plumes that drifted NW. Ash was not visible on satellite imagery.

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On 16 May, IG reported that a steam plume from Reventador rose to an altitude of 3.6 km (11,900 ft) a.s.l. and drifted to the NW. The plume was visible on satellite imagery. On 18 May, strong rains resulted in a lahar that lasted approximately 40 minutes. A lahar was also noted on 22 May. Visual observations were hindered during most of the reporting period due to inclement weather.

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On 18, 20, and 23 April, steam-and-gas emissions from Reventador hung near the summit. On 18 April, a plume was seen drifting NW on satellite imagery. On 20 April, a bluish haze of gases was observed. Clouds occasionally inhibited views of the summit during 18-24 April.

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On 28 March, an eruption from Reventador produced an ash plume that rose to an altitude of 5.6 km (18,400 ft) a.s.l. and drifted W. A small lava flow traveled 200 m down the S flank. Incandescent material and ash emissions were observed during 29-31 March. On 1 April, ash plumes rose to an altitude of 7.6 km (24,900 ft)  a.s.l. and incandescent rocks were ejected about 50 m above the crater. Incandescent material was again seen at the summit on 2 April. The
Washington VAAC reported that a strong hotspot was present on satellite imagery during 1-3 April. Based on pilot reports, IG reported that a steam-and-gas plume with little ash content rose to an altitude of 6.1 km (20,000 ft) a.s.l. and drifted W on 3 April.

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New activity has started at Reventador volcano. In early March, the number of tectonic earthquakes from Reventador had increased. During 8-22 March, steam-and-ash plumes rising to altitudes of 4 km (13,000 ft) a.s.l. were observed sporadically.
On 21 March, noises were reported. The next day, seismic signals changed and indicated possible emissions. On 24 March, local people saw ash plumes and incandescent material near the crater and heard roaring noises. An explosion produced a plume that rose to an altitude of 6.6 km (21,700 ft) a.s.l. and drifted W. Based on reports from IG, the Washington VAAC reported an ash plume to altitudes of 3.7-7 km (12,000-23,000 ft) a.s.l. that drifted NE and WNW during 26-27 March. A thermal anomaly was present on satellite imagery during 24-27 March.

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REVENTADOR Ecuador 0.078°S, 77.656°W

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From the GVP/USGS Weekly Volcanic Activity Report 17-23 August 2005:

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The eruptions at Reventador volcano in Ecuador's eastern cordillera continues into early July with the emission of overlapping, thick blocky lava flows, occasional vulcanian explosions, new fumarolic activity on the N flank of the cone, and the emission of steam, gas and ash. 

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Reventador Volcano in Ecuador has started to erupt again on Tuesday. According to Hugo Yepez, director of Geophysics Institute of the National Polytechnical School (IGEPN), a lava flow inside the crater has appeared. There is an increased possibility of explosive events in the near future.
Reventador, 3,485 meters high, is a symmetrical stratovolcano that had a major explosion on November 3, 2002, when a thick layer of ash reached the capital Quito.

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