Wed, 31 Oct 2012, 11:05
During 30-31 Oct, there were 7 weak explosions with ash plumes up to 600 m high and incandescent material rising about 100 m.
Wed, 31 Oct 2012, 11:05In the last 24 h during 29-30 Oct, there were 38 exhalations of low to moderate intensity, accompanied by emissions of steam, gas and occasionally minor amounts of ash.
Wed, 31 Oct 2012, 06:00
Based on visual observations and analyses of satellite data, KVERT reported that during 26 October-2 November a viscous lava flow continued to effuse on the NW flank of Shiveluch's lava dome, accompanied by hot avalanches and fumarolic activity. Satellite imagery showed a daily thermal anomaly on the lava dome. The Aviation Color Code remained at Orange.
Wed, 31 Oct 2012, 06:00The IG reported that although cloud cover often prevented observations of Reventador, plumes were observed almost daily. During 31 October-1 November and 3 November plumes rose 1.5-3 km above the crater and drifted NW. At about 0400 on 5 November a steam-and-ash plume rose 3 km.
Wed, 31 Oct 2012, 06:00
CENAPRED reported that during 31 October-6 November seismicity at Popocatépetl indicated continuing gas-and-steam emissions that contained ash. Incandescence from the crater was observed at night. Cloud cover often prevented observations; gas-and-steam plumes were observed drifting E and NE during periods of clearer weather.
Wed, 31 Oct 2012, 06:00The Toulouse VAAC reported that, according to a Volcano Observatory Notices for Aviation (VONA) issued by the Goma Volcano Observatory, a gas plume composed mostly of sulfur dioxide rose from Nyiragongo on 1 November.
Wed, 31 Oct 2012, 06:00
Based on analysis of satellite imagery and other data, the Darwin VAAC reported that on 3 November an ash plume from Manam rose to an altitude of 3 km (10,000 ft) a.s.l. Images later that day showed that the ash had dissipated.
Wed, 31 Oct 2012, 06:00During 31 October-6 November HVO reported that the circulating lava lake periodically rose and fell in the deep pit within Kilauea's Halema'uma'u Crater. Occasional measurements indicated that the gas plume from the vent continued to deposit variable amounts of spatter and Pele's hair onto nearby areas. Lava flows were active in the Royal Gardens subdivision and flowed across the coastal plain, but were 1-1.3 km from the coast.
Wed, 31 Oct 2012, 06:00
KVERT reported moderate seismic activity from Karymsky during 26 October-2 November; seismicity indicated that possible ash plumes rose to an altitude of 3.5 km (11,500 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 27 October. The Aviation Color Code remained at Orange.
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Wed, 31 Oct 2012, 06:00INGEOMINAS reported that during 30 October-6 November seismicity at Galeras fluctuated but was slightly lower compared to the previous week. Sulfur dioxide gas emissions were low. Cameras around Galeras recorded gas-and-ash plumes rising from the crater on 30 October and 1 November.
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Wed, 31 Oct 2012, 06:00
INSIVUMEH reported that during 1-2 November white fumarolic plumes from Fuego rose 100 m and drifted SW. Explosions ejected incandescent material 100 m above the lava dome, and produced ash plumes that rose almost 500 m and drifted 10 km SW. A lava flow traveled 350 m SSW down the Ceniza drainage.
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Wed, 31 Oct 2012, 06:00JMA reported that during 29 October-2 November explosions from Sakura-jima's Showa Crater ejected tephra as far as 1.8 km from the crater. A small explosion from Minami-dake Crater occurred during 29-30 October. Based on information from JMA, the Tokyo VAAC reported that explosions during 2-5 and 7 November produced plumes that rose to altitudes of 1.8-2.4 km (6,000-8,000 ft) a.s.l. and drifted N, E, and SE.
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Wed, 31 Oct 2012, 06:00
KVERT reported that during 26 October-2 November moderate seismic activity at Kizimen was detected along with a thermal anomaly in satellite imagery. Video and satellite images showed lava flows effusing from the summit and the E flank, summit incandescence, strong gas-and-steam activity, and hot avalanches on the S flank. The Aviation Color Code was raised to Orange on 1 November.
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Tue, 30 Oct 2012, 12:05After a few days with small to medium explosions, two stronger eruptions occurred yesterday evening and this morning (GMT time), sending ash to 10-11,000 ft (3-3.4 km) altitude.
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Tue, 30 Oct 2012, 10:48
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SO2 plume from Ambrym on 30 Oct (NOAA)
A strong SO2 plume is visible on today's NOOA satellite image, suggesting more than usual intense lava lake activity.
Tue, 30 Oct 2012, 10:37
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Incandescence from the crater at night
During 28-29 Oct, the monitoring system of Popocatepetl volcano registered 35 exhalations of low to moderate intensity, accompanied by emissions of steam, gas and occasionally minor amounts of ash, the most important occurred at 21:33 pm on 28 Oct, at 5:01 am and at 9:27 am on 29 Oct.
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Tue, 30 Oct 2012, 10:06
A recent study indicates that the rhyolite lava domes in the Salton Sea area are less than 3,000 years old, which confirms that the volcanic system is to be considered potentially active.
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Tue, 30 Oct 2012, 10:02Early Sunday morning, 29th October residents reported a rumbling sound from Poas. Then at around 13:00 (local time) the volcano ejected ash and mud 500 M above the crater. Two other eruptions took place at 16:34 and 16:44 (both local time). The eruptions were most probably phreatic. The Alert Level remains at GREEN.
Mon, 29 Oct 2012, 17:13
The week starts with little significant volcano activity to report. Some updates include:
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Mon, 29 Oct 2012, 12:05
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Current earthquakes (red and orange=past 48 hours, yellow=past week) near the summit of Kilauea volcano
Earthquake activity in or near the upper eastern rift zone has been increasing. A magnitude 3 quake occurred in the northern part of the caldera today.
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Mon, 29 Oct 2012, 11:05
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Location of quakes (Icelandic Met Office)
The earthquake swarm in the Tjörnes Fracture Zone north off Iceland continues into its 10th day. After a decline in intensity during 25-28 Oct, the frequency of quakes has again picked up. There are often more than 100 quakes a day including some above magnitude 3. The Icelandic Met Office maintains a warning for a possible larger quake in the area.
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Time and depth of quakes at the TFZ
Mon, 29 Oct 2012, 11:05
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Current seismic signal from Stromboli (INGV)
The current storm over the Tyrrhenian Sea is probably causing the elevated amplitudes visible in the seismic recordings.
Mon, 29 Oct 2012, 11:05
After a slight increase in activity last week, Popo has been calmer during 27-28 Oct with only about 1 weak explosion per hour, some of which contained small amounts of ash.
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Mon, 29 Oct 2012, 11:05
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Ash explosion on 28 Oct (INGEOMINAS)
Occasional small ash eruptions continue to occur at the volcano, such as today.
Mon, 29 Oct 2012, 11:05
There were 2 weak explosions with some incandescence visible at 04:39 and 05:47 h local time early today, producing ash and steam plumes up to 700 m high. The lava flows from the dome remain weakly active and produce avalanches of blocks from their fronts.
Mon, 29 Oct 2012, 11:05There have been 4 weak explosions ejecting ash plumes of about 4-500 m height during 27-28 Oct. Rumblings were heard with degassing sounds similar to a turbine engine lasting about 1 minute. The lava flow towards the Ash Canyon was about 400 m long and produced incandescent blocks tumbling to the vegetation line.
Mon, 29 Oct 2012, 09:40
The MODVOLC (MODIS) has continued to detect thermal anomalies at Michael volcano, Antarctica.
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Sun, 28 Oct 2012, 11:05
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Seismic signal 27 Oct (INGV Catania)
Judging from the current seismograms, activity at the volcano seems to be elevated today with a possibly stronger tremor signal. Due to bad weather, no visible observations are available.
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