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Thermal anomaly during the past 2 days (MODIS / Univ. Hawai'i)
A thermal anomaly at the summit is visible on MODIS satellite images and a steam plume can be seen rising from the volcano.
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SO2 plume from Bagana on 30 Sep 2012 (NOAA)
A strong SO2 plume today suggests heightened activity going on at Bagana.
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Explosion Sep 29. 2012 (INSIVUMEH)
At 05:18 hours local time yesterday, a rumbling was heard from the Nima 1 valley above the observatory. Most of the time, the dome is degassing with a 400 m steam plume.
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Explosion early yesterday (INSIVUMEH)
There have been 16 explosions between 28-29 Sep including 10 moderately strong ones with ash plumes rising 600-900 meters above the crater. Glowinb bombs were seen reaching 200 m height and generating avalanches around the crater. Fine ash fall was recorded at the observatory, in Morelia and Santa Sophia and Sangre de Christo. Rumblings and shock waves from the explosions could be head and felt in up to 15 km distance.
has further increased its activity. In its latest report, INSIVUMEH counted 18 eruptions during 27-28 Sep, out of which 10 were moderately sized and produced ash plume up to 1 km height, and fountains of incandescent material of up to 200 m height, which generated avalanches on the upper crater flanks.
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Current seismic signal from Little Sitkin (AVO)
Seismic activity remains elevated. The level of seismic activity varies from day to day, though this week it has been at levels lower than seen earlier in the current period of unrest, which started in late August. Nothing unusual was observed in mostly cloudy satellite images over the past week. AVO has received no reports of unusual activity at the volcano. (AVO)
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NASA space shuttle image from Changbaishan volcano taken on 4 April 2003
According to an article on NBC News, Changbaishan (Baitoushan) volcano in northeastern China close to the border with North Korea has been showing signs of unrest and might be preparing itself for an eruption in the next few decades.
Sat, 29 Sep 2012, 08:35Yesterday marked another very active day for Sakurajima with no less than 6 explosions between 6,000 - 9,000 ft ash plume altitudes, VAAC Tokyo reports.
Sat, 29 Sep 2012, 08:22
Activity remains stable at Kilauea. At the Pu'u 'O'o, the lava lake that occupies the east pit crater is still active and was accompanied by a second pit crater lake in the south. Active lava flows are still progressing through the Royal Gardens at an an estimated speed of 100m per day. (HVO)
Sat, 29 Sep 2012, 08:08A large lahar traveled through the Ash Canyon (Barranco Ceniza) towards the community of Osnuna on 27 Sep between 14.30-15:50. More than 55 m of rainfall during a single hour (2.2 inches) remobilized still hot pyroclastic flow deposits from the 13 Sep eruption in the canyon including large tree fragments and boulders more than 1.5 meters in diameter. The lahar, strongly smelling of sulfur, cut the dirt road between San Andrés Osuna and Siquinalá. It was the first of these dimensions, but INSIVUMEH warns that more are possible.
Sat, 29 Sep 2012, 07:14
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Current seismic signal from station FG3 (INSIVUMEH)
The number and strength of explosions has been further increasing. In its latest report, INSIVUMEH counted 18 eruptions during 27-28 Sep, out of which 10 were moderately sized and produced ash plume up to 1 km height, and fountains of incandescent material of up to 200 m height, which generated avalanches on the upper crater flanks.
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Sat, 29 Sep 2012, 06:52
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Popocatépetl with crater glow this morning
During the past 24 hours, 10 weak explosions occurred. Glow is visible at night and a strong SO2 plume appears on satellite images.
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SO2 plume from Popocatépetl on 28 Sep 2012 (NOAA)
Fri, 28 Sep 2012, 09:41
Not much new volcano activity has occurred. Most volcanoes we regularly monitor have not shown significant changes.
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Fri, 28 Sep 2012, 09:32
5 weak explosions and tremor pulses were registered between 26-27 Sep by CENAPRED. Satellite data show a strong SO2 plume.
Fri, 28 Sep 2012, 09:30
Intense steaming can be observed from the El Agrio crater lake as the following recent video shows:
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Fri, 28 Sep 2012, 09:10Mostly the volcano is hidden in clouds and IG has no seismic data available, but last night, energetic steam emissions were observed.
Fri, 28 Sep 2012, 08:50
Tondano Lake is a large caldera lake in northern Sulawesi (Indonesia), best known as for its popular local recreation areas. Few know it is what is nowadays usually called a SUPERVOLCANO, similar to Yellowstone with a big difference: it is currently erupting. As Carl on VolcanoCafe in a brilliant article (s. below) points out, a single small earthquake at Yellowstone outperforms it in popularity.
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Fri, 28 Sep 2012, 08:30Activity remains stable. Strombolian bursts reaching average heights of 75 - 150 meters above the crater, 14 explosions total observed between 26-27 Sep (9 weak and 5 moderate) with ash plumes of 500-800 m height above the crater.
Thu, 27 Sep 2012, 15:35
The number of earthquakes remains elevated, and their location and depths are becoming more scattered with several quakes above M2 at about 15 km depth.
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Thu, 27 Sep 2012, 12:30
Thu, 27 Sep 2012, 10:05
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SO2 plume from Nyiragongo on 27 Sep (ESA)
A strong SO2 plume is visible on satellite images.
Volcanic activity world-wide 27 September 2012: Marapi, Fuego, Santiaguito, Pacaya, Popocatépetl, San Miguel, Montserrat, Little Sitkin, Bagana, Dukono, Batu Tara
Thu, 27 Sep 2012, 09:41A new explosion took place yesterday at Sumatra's
Marapi volcano. Local media reported an ash cloud rising 1.5-2 km and that the eruption was the strongest so far in 2012.
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Thu, 27 Sep 2012, 09:32
What could be another seismic swarm and perhaps weak tremor is visible on the current seismogram of the volcano. "Seismic activity remains above background and nothing unusual was observed in mostly cloudy satellite images over the past 24 hours", the Alaska Volcano Observatory reports.
Thu, 27 Sep 2012, 09:21
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Current seismic signal (VSM station, INETER)
Lots of seismic activity with small quakes and tremor pulses is occurring at the volcano.
Thu, 27 Sep 2012, 09:13
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Thermal anomaly at Dukono (MODIS, Univ. of Hawai'i)
On 26 September, MODVOLC (MODIS) noted thermal anomalies at Dukono Volcano's active crater, suggesting low activity in the crater. No ash plumes were detected on satellite images.
Thu, 27 Sep 2012, 09:09Only 5 small exhalations were reported during 25-26 Sep.
Thu, 27 Sep 2012, 09:05
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Seismic signal last night (PCG station, INSIVUMEH)
Only steaming is observed at the fumaroles, but there is a lot of seismic activity (small quakes, and long-period events) suggesting fluid movements inside the volcano.
Thu, 27 Sep 2012, 08:47The volcano continues to increase its activity slowly. Incandescent strombolian pulses were seen at night throwing bombs to 100-150 meters above the crater and some of the material generated weak to modest avalanches when falling back. Rumbling and degassing sounds were noted at intervals of 1-6 minutes.
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