Volcano watch
Japan: A new island appears in the Ogasawara Islands - November 2013
Active volcanoes (Sep 28, 2012)
"Of course all volcanoes will explode, as this is going to be a very severe pole shift. What about the months and years preceding the pole shift? It is no secret that Mammoth Lake and the caldera of Yellowstone are warming up, and the populace has been prepared for these occurrences by the movie Volcano where there, in the middle of LA, lava is bubbling up. In fact, there is a fault line running from the approximate San Diego/LA area, up into the Sierras, and this is liable to rupture rather violently during one of the quakes that precedes the pole shift by some months. Volcanic eruptions from that area in the Sierras can be expected. Will Mount St. Helen erupt? All volcanoes that have been active within the memory of man will begin spewing and burping and oozing, and many that were not expected to become active will reactive. " ZetaTalk - Feb 15, 2000
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Comment by Weston Ginther on January 28, 2012 at 10:50pm
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Nyamuragira Volcano (DR Congo)
UPDATE: Eruption Continues with Active Lava Lake and Lava Flow From New NE Vent
Friday Jan 27, 2012
During our recent expedition, we visited Nyamuragira's ongoing eruption during 22-25 January, and found that the eruption is still going on strongly, but somewhat less intense than during the first 1-2 weeks in January.
The second vent complex, which had started to form at the NE end of the eruptive fissure in late Dec or early Jan with about one week of constant fountaining, consists of probably 3 coalescent cones.
The middle and largest of them contained a crater filled with boiling lava, i.e. a small lava lake, which was strongly spattering every few seconds. The lava lake itself was not visible, but could be inferred from the strong glow and the hissing degassing noise of exploding gas bubbles that ejected liquid spatter bombs in all directions.
Some of the ejections reached up to about 200 m height and individual bombs reached the base of the cone....
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New Strombolian Activity at Etna's New SE Crater
Saturday Jan 28, 2012
Sporadic strombolian eruptions have started at the New SE crater on 27 Jan, following ash emissions observed the previous day.
Explosions were observed at 19:54, 20:05, 20:54, 21:11 and 22:40 local time according to Etna Walk who monitor the webcam of INGV. The explosions ejected bombs up to a few tens of meters above the crater rim and mostly fell back inside.At the time of writing, no changes in harmonic tremor are visible, and it is still unclear whether the start of strombolian activity heralds a new paroxysm - as it has done so 19 times before in the past 12 months - or not. The next hours and perhaps days will give an answer to it.
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Popocatépetl Volcano (Mexico): Increasing Activity and Ash Eruptions
Saturday Jan 28, 2012
Popocatépetl volcano's activity is increasing. On 25 Jan at 10:10 local time, an ash explosion produced a plume of 3 km height drifting NE. During the past days, strong degassing and steaming has been observed as well as periods of low-frequency tremor. At night (see webcam image), a constant glow can be seen from the summit crater, suggesting that the lava dome might have started a new phase of growth.
Authorities recommend a safety distance from the volcano of 12 km radius, and the alert level remains at "yellow".
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Comment by Sevan Makaracı on January 27, 2012 at 12:20pm
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JAN 26 - HAWAII, KILAUEA VOLCANO
LAVA ACTIVITY ELEVATED AT KILAUEA
The Hawaiian Volcano Observatory has released video showing lava splattering in Halemaumau Crater.
Scientists say the video shows, "vigorous spattering along the south margin of the Halemaumau lava lake." The lava level is estimated to be around 260 feet below the floor of Halemaumau Crater.
The overall activity at Kilauea was slightly elevated and inflation and the summit lava lake rise continued.
Overall seismic tremor levels were low and gas emissions were elevated...
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Comment by jorge namour on January 26, 2012 at 12:07pm
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Unrest at Turrialba Volcano, Costa Rica Thursday, 26 January 2012
(Click on image for larger view.)
Turrialba is the eastern-most of Costa Rica’s active volcanoes. A series of small explosive eruptions began there in January 2010, the first substantial activity at Turrialba since the 1860s. The 2010 explosions were presaged by the opening of small gas vents (fumaroles) beginning in 2006. A new vent, located on the southeastern flank of the volcano’s West Crater, opened on January 12, 2012. According to the Observatorio Vulcanológico y Sismológico de Costa Rica, the new vent exhibited “a vigorous output of bluish gas at high temperature (T > 592°C) that generated a jet-like sound audible from the visitor lookout.” Activity since 2010 had been confined to a larger vent on the southwest flank of the West Crater, which continues to be the major source of emissions.
This image was acquired on January 21, 2012, by the Advanced Spaceborne Thermal Reflection and Emission Radiometer (ASTER) aboard NASA’s Terra satellite. The false-color image is a combination of near infrared, red, and green light. Healthy vegetation is bright red, while vegetation damaged by years of acidic gas emissions is brown. Bare ground in the summit craters is brown or gray.
The rock is very weak at the summit of Turrialba due to the intense rains of the region and the persistent hydrothermal activity at the summit. This means that new vents can open at the summit when pressure in the conduit is high enough to make its way through the weakened rock. The activity of January 12 was a pressure release at the summit through the hydrothermally-altered “rotten rock,” not a magmatic or phreatic (steam-driven) eruption.
References:
Observatorio Vulcanológico y Sismológico de Costa Rica. (2012, January 18). Turrialba Volcano (Costa Rica): Opening of a new fumarolic vent on the southeast flank of the West Crater on January 12th, 2012. Accessed January 25, 2012.
NASA Earth Observatory Image by Jesse Allen and Robert Simmon, using data from the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. Caption by Erik Klemetti (Denison University & the Eruptions blog) and Robert Simmon.http://sawdis1.blogspot.com/2012/01/unrest-at-turrialba-volcano-cos...
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Jan 24
El Hierro volcano - Strong submarine eruptions: Boiling water surface / Lava ballons are surfacing
It seems that the submarine volcano south of Restinga village is very active and already there is steam on the seasurface...(Source)
...suddenly a big quantity of lava balloons are surfacing....(Source)
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Comment by bill on January 21, 2012 at 4:14am
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Tungurahua volcano (Ecuador), activity update: new eruptions and lahars
IG reported a new episode of activity and increased seismicity from Tungurahua during 11-17 January. On 12 January ashfall was reported in Manzano (8 km SW), Cahuají (8 km SW), and Choglontus (13 km WSW).
A lahar descended the Achupashal drainage, carrying blocks up to 1 m in diameter, and caused the road to Baños (9 km N) to be closed. Cloud cover prevented observations of the crater. On 13 January ash-and-gas emissions were observed, and ash plumes rose as high as 7 km (23,000 ft) a.s.l. and drifted W. Ash-fall was reported in Palitahua (6 km SSW) and roaring noises were heard in Cusúa (8 km NW) and Manzano.
On 14 January ash emissions rose 500 m above the crater and drifted WSW; ashfall was reported in Choglontus, Palitahua, and Manzano. Clouds obscured views on 15 January; however ashfall was reported in Palitahua and Manzano. Lahars descended drainages in Juive (NW) and Pondoa (N), carrying blocks 10-20 cm in diameter.http://www.volcanodiscovery.com/view_news/4459/Tungurahua-volcano-E...
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JAN 19
COSTA RICA, TURRIALBA VOLCANO
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New Alert At Turrialba Volcano
The alert for the Turrialba Volcano is back following Wednesday's activity that included the expulsion of ash and a slight tremor. The activity was confirmed by the Observatorio Vulcanológico y Sismológico Nacional (Ovsicori) that constantly monitors the volcano.
The spewing of ash and debris and the tremor was confirmed by areas residents.
OVSICORI experts are on site analyzing the causes of this new outpouring of ash that lasted some 20 minutes. In addition, the experts are involved in flyovers of the area....
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JAN 19
JAPAN, SAKURAJIMA VOLCANO - LARGE EXPLOSIVE ERUPTIONS
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