Mi, 27. Jan 2010, 06:00
KVERT reported that during 22-29 January seismic activity from Shiveluch was above background levels, possibly indicating ash plumes rising to an altitude of 4.6 km (15,100 ft) a.s.l. Fumarolic activity was occasionally observed. Analyses of satellite imagery revealed a large daily thermal anomaly from the lava dome.
Mi, 27. Jan 2010, 06:00Based on pilot observations, the Washington VAAC reported that on 2 February an ash plume from Sangay rose to an altitude of 8.2 km (27,000 ft) a.s.l. Ash was not identified in satellite imagery, although weather clouds were present in the area.
Mi, 27. Jan 2010, 06:00
CENAPRED reported that during 27-31 January and 1 February emissions of steam and gas from Popocatépetl contained minor amounts of ash.
Mi, 27. Jan 2010, 06:00During 27 January-2 February, the MODIS sensor aboard the Earth Observing System (EOS) satellite frequently detected thermal anomalies from Nyamuragira. The Toulouse VAAC reported that a diffuse ash plume was seen on satellite imagery on 29 January.
Mi, 27. Jan 2010, 06:00
KVERT reported that during 22-29 January seismic activity from Kliuchevskoi was above background levels and lava continued to flow down the NW flank. Strombolian activity periodically ejected material 200 m above the crater, and phreatic explosions occurred from the front of the lava flow. Satellite imagery revealed a large daily thermal anomaly at the volcano.
Mi, 27. Jan 2010, 06:00During 27 January-2 February, HVO reported an active lava surface about 200 m below a vent in the floor of Kilauea's Halema'uma'u crater. The lava surface occasionally spattered, and both rose and drained through a hole in the cavity floor. A plume from the vent drifted N, NW, and W, dropping small amounts of ash, and occasionally fresh spatter, downwind.
Mi, 27. Jan 2010, 06:00
KVERT reported that during 22-29 January seismic activity from Karymsky was above background levels and possibly indicated weak ash explosions. Analyses of satellite imagery revealed a thermal anomaly over the volcano during 21-25 and 27 January. The Level of Aviation Color Code remained at Orange.
Mi, 27. Jan 2010, 06:00On 29 January, the Vanuatu Geohazards Observatory reported significant changes in Gaua's activity over the previous two weeks. They noted that since 16 January more gas was emitted and multiple explosions produced denser and darker ash plumes. During 22-29 January, the water level in the river to the E that Lake Letas feeds rose 10 cm.
Mi, 27. Jan 2010, 06:00
Based on information from JMA, the Tokyo VAAC reported that during 27 January-2 February multiple explosions from Sakura-jima produced plumes that rose to altitudes of 1.8-2.4 km (6,000-8,000 ft) a.s.l. and drifted SE, E, and NE. During 27-29 January and 1-2 February, pilots reported that ash plumes sometimes drifted SE and S at altitudes of 1.2-3 km (4,000-10,000 ft) a.s.l.
Read all
Mi, 27. Jan 2010, 06:00The IG reported that during 26 January-2 February explosions from Tungurahua were detected by the seismic network. Inclement weather occasionally prevented observations of the volcano; ash plumes were seen rising to altitudes no higher than 8 km (26,200 ft) a.s.l. Ashfall was noted almost daily in areas to the SW, W, and NW.
Read all
Mi, 27. Jan 2010, 06:00
During 27 January-2 February, the MODIS sensor aboard the Earth Observing System (EOS) satellite continued to frequently detect thermal anomalies from Nyiragongo, likely from lava lake activity. Based on analyses of satellite imagery, the Toulouse VAAC reported that during 30-31 January a diffuse plume drifted 240 km W.
Read all
Sa, 23. Jan 2010, 07:36A sudden increase of gas emission from the new vent in Turrialba's crater since the morning of 20 Jan prompted the authorities to suspend agricultural activities in the immediate areas around the volcano.
Read all
Fr, 22. Jan 2010, 22:23
Our correspondant in Costa Rica reports a beautiful phreatic eruption at Poas volcano today at noon time. This is the second eruption (after the one on 25 Dec 09) in a short time span.
Do, 21. Jan 2010, 10:34MVO reported that during 8-15 January activity from the Soufrière Hills lava dome increased significantly. One explosion on 8 January and two on 10 January generated ash plumes that rose to altitudes of 5.5-7.6 km (18,000-25,000 ft) a.s.l. Ash fell in occupied areas to the NW, along with lapilli fall on 10 January. The explosions occurred from an area on the NE side of the volcano. Pyroclastic flows from column collapses moved rapidly NE (down Whites Bottom and Tuitts Ghaut), NW (down Tyers Ghaut and Belham Valley), W (down Gages Ghaut), and the SE (down the Tar River Valley). After the explosions activity decreased until 12 January, when cycles of increased numbers of rockfalls, pyroclastic flows, and ash venting were noted.
Read all
Mi, 20. Jan 2010, 06:00
During 29-30 December 2009, a visitor to Suwanose-jima observed and photographed multiple Strombolian explosions and ash eruptions from Otake crater. Based on information from JMA, the Tokyo VAAC reported explosions during 22-26 January. On 24 and 26 January, plumes rose to altitudes of 1.2-1.5 km (4,000-5,000 ft) a.s.l.
Read all
Mi, 20. Jan 2010, 06:00KVERT reported that during 15-22 January seismic activity from Shiveluch was above background levels, possibly indicating ash plumes rising to an altitude of 4.7 km (15,400 ft) a.s.l. Analyses of satellite imagery revealed a large daily thermal anomaly from the lava dome. The Level of Aviation Color Code remained at Orange.
Read all
Mi, 20. Jan 2010, 06:00
INSIVUMEH reported that on 21 January ashfall was reported in areas near Santa María's Santiaguito lava dome complex. The next day an explosion produced an ash plume that rose to an altitude of 3.2 km (10,500 ft) a.s.l. and drifted SW.
Read all
Mi, 20. Jan 2010, 06:00On 22 January, SERNAGEOMIN reported that seismicity from Llaima had decreased during the previous few weeks to background levels. The Alert Level was lowered to Green, (Level 2) on a three-color scale.
Read all
Mi, 20. Jan 2010, 06:00
KVERT reported that during 15-22 January seismic activity from Kliuchevskoi was above background levels and lava continued to flow down the NW flank. Strombolian activity periodically ejected material 300 m above the crater. Phreatic explosions from the front of the lava flow ejected material that rose to altitudes of 4.5-8 km (14,800-26,200 ft) a.s.l.
Read all
Mi, 20. Jan 2010, 06:00During 20-26 January, HVO reported an active lava surface about 200 m below a vent in the floor of Kilauea's Halema'uma'u crater. The lava surface occasionally spattered, and both rose and drained through a hole in the cavity floor. A plume from the vent drifted multiple directions, dropping small amounts of ash, and occasionally fresh spatter, downwind.
Read all
Mi, 20. Jan 2010, 06:00
KVERT reported that during 15-22 January seismic activity from Karymsky was above background levels, possibly indicating that ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. Analyses of satellite imagery revealed a daily thermal anomaly over the volcano. The Level of Aviation Color Code remained at Orange.
Read all
Mi, 20. Jan 2010, 06:00Based on analyses of satellite imagery and pilot observations, the Wellington VAAC reported that on 21 January an ash plume from Gaua rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted S. An ash cloud was seen in satellite imagery on 26 January.
Read all
Mi, 20. Jan 2010, 06:00
On 22 January, INSIVUMEH reported that explosions from Fuego produced gray plumes that rose to altitudes of 4.4-4.8 km (14,400-15,700 ft) a.s.l. and drifted 5-12 km SW. Incandescent material was ejected to heights of 75 m and avalanches descended the flanks.
Read all
Mi, 20. Jan 2010, 06:00SERNAGEOMIN reported that during 5-19 January Chaitén's lava-dome complex continued to grow, although possibly at rates lower than during previous weeks. The magnitude and number of hybrid earthquakes decreased. The Alert Level remained at Red.
Read all
Mi, 20. Jan 2010, 06:00
Based on analyses of satellite imagery, the Darwin VAAC reported that on 23 January an ash plume from Batu Tara rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted 25 km E.
Read all
Mi, 20. Jan 2010, 06:00Based on a pilot observation, the Darwin VAAC reported that on 23 January an ash plume from Barren Island rose to an altitude of 3 km (10,000 ft) a.s.l. Ash was not identified in satellite imagery.
Read all
Mi, 20. Jan 2010, 06:00
During 26 December 2009-9 January 2010, a visitor to Sakura-jima observed and photographed Strombolian and Vulcanian explosions from Showa crater. Based on information from JMA, the Tokyo VAAC reported that during 20-26 January multiple explosions often produced plumes that rose to altitudes of 1.2-2.4 km (4,000-8,000 ft) a.s.l. and drifted NE, E, SE, and S.
Read all
Mi, 20. Jan 2010, 06:00The IG reported that during 20-26 January explosions from Tungurahua were detected by the seismic network. Inclement weather often prevented observations of the volcano; occasionally ash plumes were seen rising to altitudes of 5.3-8 km (17,400-26,200 ft) a.s.l. Ashfall was noted almost daily in areas to the SW and sometimes to the W and NW.
Read all
