Volcano watch

[Sevan Makaracı]

Japan: A new island appears in the Ogasawara Islands - November 2013

Active volcanoes (Sep 28, 2012)

Source

Source

"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

[jorge namour]

Marapi (Sumatra) and not Merapi (Java).August 14, 2013

http://translate.google.com.ar/translate?sl=fr&tl=en&js=n&a...

yesterday two ash emissions were detected by an observer position.
The first occurred yesterday at 13h (local time) and his ashes amounted to about 300 m high.
The second took place this morning at 8:07 (local time ever) and sent some ash to a height of about 600 m.

An undated photo used by the online newspaper Metro

http://translate.google.com.ar/translate?sl=fr&tl=en&js=n&a...

Lascar, Chile, 5592 m August 14, 2013

Lascar is yellow alert . Not very large, the seismicity of the building is still a little "abnormal" with 245 tremors recorded. The majority of them (216) are related to the simple fracturing fluids without moving. The other 19 are shaking Long Period kind, caused by fluid movement in the building. Of these 19, 11 are jerks "tornillo" type, special seismic signals that have been described for the first time at Galeras in 1993, before an explosion killed several scientists symposium on site. It has since been shown that this type of signal is not necessarily a precursor of eruptive activity but encourage greater vigilance when it is saved.
From the outside, the building is fairly "zen" with a simple discrete degassing.

http://translate.google.com.ar/translate?sl=fr&tl=en&js=n&a...

Veniaminof - ALASKA : activity rebounding August 13, 2013

the eruption has found a real momentum since yesterday.
On webcam Perryville could see yesterday, some nice ash emissions swept westward.

According to the bulletin of the AVO ashes stood on the image to about 3600 m altitude.
This activity comes back clear and net thermal signal, visible even now on captured by the GOES satellite images.
The thermal signal produced by the current activity. Image: GOES / NOAA
The same newsletter AVO indicates that thermal signal can be explained by the presence of active lava flows.

A plume of ash saw yesterday from Perryville.

[Howard]

Update on the ongoing eruption at Mt Rokatenda (Aug 11):

"The activity...remains high and at dangerous levels. There are no signs it will stop erupting any time soon," Surono, an official from the state vulcanology agency, said.

The volcano threw rocks and ash 2,000 metres into the sky and sent torrents of molten lava onto a beach, killing three adults and three children as they slept.

A rescue team is struggling to evacuate some 2,000 people inside a three-kilometre exclusion zone. A group of "traumatised" inhabitants have already left the island.

Team member Bakri Kari said rescue efforts were difficult as roads were blocked by ash and people were reluctant to leave their homes.

"It was tough trudging through hot ground covered in ash that was 10 to 20 centimetres thick," he said.

"Everything was burnt by the lava.

"People were scared and many were crying. They wanted to get away from the volcano but at the same time they were reluctant to leave their livestock and homes."

Rescuers have recovered the bodies of the adults killed on the beach but the children are yet to be found, he said.

About 2,000 people had already been evacuated to Flores before Saturday's eruption, leaving around 8,000 people still on the island.

Source

http://www.abc.net.au/news/2013-08-10/an-five-dead-in-indonesian-vo...

[Howard]

Russia’s Shiveluch Volcano Spews Ash 3 Miles High (Aug 5)

Russia's northernmost active volcano erupted Monday sending a cloud of ash 6 km into the atmosphere. 

This is the third release of ash by Shiveluch in recent days.

Two other eruptions occurred on July 29 and August 1 when the column of ash also reached a height of 6 km height above the sea level.

Shiveluch volcano has been increasingly active since May 2009.

Sources

http://www.upi.com/Science_News/2013/08/05/Russian-volcano-spews-as...

http://portuguese.ruvr.ru/news/2013_08_03/vulcao-shiveluch-lanca-ci...

[jorge namour]

Redoubt, Alaska, Wednesday JULY 31 2013

in an image of before yesterday

https://www.facebook.com/pages/INSTITUTO-VOLCANOL%C3%93GICO-DE-CANA...

Volcán Popocatépetl - MEXICO 1/Agosto/2013

http://www.cenapred.unam.mx/cgi-bin/popo/reportes/ultrep.cgi Ver imagen

Heard volcano (Australia, Southern Indian Ocean)
https://www.facebook.com/VolcanoMonitor
activity update: likely lava lake in summit crater
http://www.volcanodiscovery.com/heard/news.html
Recent satellite images suggest that a lava lake is most likely currently active in the summit crater of Mawson Peak.
NASA satellite infrared images show a very hot circular object of about 100-150 m in diameter that plausibly could only be produced by the strongly heat-radiating surface of a lava lake. Currently, no lava flows seem to be present on the other hand.

[jorge namour]

Tungurahua - ECUADORjjust erupted
Webcam image of Tungurahua eruption 28th July 2013 13:31 BST

https://www.facebook.com/VolcanoMonitor

http://translate.google.com/translate?hl=en&sl=auto&tl=en&a...

Tolbachik, RussiaJuly 28, 2013

The activity of the building seems to know for a few days renewed.
the presence of the flows continues to manifest itself in a (small) thermal signal.

On the ground the eruption continues to fuel flows and, according to the images of the webcam installed Kozyrevsk, even vigorous activity in the cone. The glow of the latter is in fact returned pretty intense these days. A photo taken on July 23, can see both the cone is actually active and the flows escaping nearby are always supplied, but progress in tunnels.

This photo was taken on July 23 allows a tunnel to see active lava (bottom left) and the activity of the cone

http://translate.google.com/translate?hl=en&sl=auto&tl=en&a...

July 26, 2013
White Island: aviation alert to yellow

The Geonet decided to change this morning the alert level of aviation in the White Island from green to yellow, but without affecting the level of volcanic activity, he remains at 1. The tremor has indeed tended to increase during the night

On the site potent activity in pools of mud, with projections up to 30 m in height and intense gas jets. .A situation similar to what was observed a year ago.

The glow of the dome is still clearly visible. Image Geonet

[Howard]

2 Indonesian Volcanoes Erupt, Hundreds Flee, Officials Urge Calm (July 22) Indonesian officials urged people living near Mount Merapi to remain calm as the volcano belched thick black smoke and volcanic ash into the air, forcing hundreds to flee along its slopes.

The volcano unleashed a column of dark red volcanic material 1,000 meters into the air as terrified residents fled to safety.

The sound was heard 30 kilometers away.

"This was not an eruption, just the sliding-down of volcanic material from the top of the volcano," said Agus Hendratno, a geologist and lecturer at Gadjah Mada University in Yogyakarta. He said this is a common process in which part of the volcano's lava dome collapses, releasing ash and volcanic material.

Meanwhile, another volcano, the 1,500-meter Mount Lokon in North Sulawesi also erupted at 5:06 a.m. spewing a column of ash and smoke 2,000 meters up into the sky and spreading ash on the southern flank of the mountain.

Farid Sukendar, the head of the vulcanology observation post monitoring Mount Lokon, said that the eruption came as a surprise.

Sources

http://www.nzherald.co.nz/world/news/article.cfm?c_id=2&objecti...

http://online.wsj.com/article/SB10001424127887323829104578621181767...

http://www.thejakartaglobe.com/news/officials-urge-residents-to-rem...

[Howard]

Explosive Eruption at Japan’s Sakurajima Volcano (July 21)
A strong vulcanian explosion occurred at 11:02 GMT.  A loud cannon-shot bang accompanied the explosion, which generated a large mushroom cloud that reached 12,000 ft (3.7 km) altitude and engulfed the NE half of the Sakurajima peninsula and was followed by several smaller ones within about half an hour.

The volcano and much of the surrounding areas remained under the ash plume for several hours. In the hours after the explosion, the Showa crater continued to emit ash plumes in often near-continuous pulses, sometimes reaching several hundred meters in height, but with no visible incandescence or audible sounds.

Source

http://www.volcanodiscovery.com/view_news/35684/Sakurajima-volcano-...

[Howard]

Eruption Intensifies at 2nd Ecuador Volcano (July 17)

Lava flow and ash and gas emissions have intensified at a second Ecuadorean volcano, Reventador, as the full-bore eruption of the Tungurahua cone continues.

Reventador is located on the eastern branch of the Andes, has shown a significant increase in seismic activity, and is accompanied by the emission of a lava flow descends the southwestern flank of the cone, a phenomenon that has been observed since July 13.

Although gas emissions and a high level of seismic activity that is associated with the eruption, not as a threat to small towns in the area, or for roads or oil industries who live in the region.

The 11,400-foot (3,475-meter) volcano is nearly three times that distance from Tungurahua to the southwest which has been roaring since Sunday, when 200 people were evacuated from its flanks and one pyroclastic blast was heard as far away as the coastal city of Guayaquil.

Sources

http://www.ctvnews.ca/world/eruption-intensifies-at-2nd-ecuadorean-...

http://eldiario.com.uy/wp-content/uploads/2013/07/volcan-7l686557l6...

[jorge namour]

JULY 15 2013

https://www.facebook.com/pages/INSTITUTO-VOLCANOL%C3%93GICO-DE-CANA...

Spectacular images that come from Ecuador following the violent explosion of the volcano Tungurahua yesterday.

[jorge namour]

July 8, 2013

Popocatepetl,MEXICO

http://laculturevolcan.blogspot.fr/2013/07/le-point-sur-quelques-er...

The last newsletter CENAPRED indicates that during a survey conducted yesterday, volcanologists have noted the presence in the summit crater of a new active dome, about 250 m wide.
The detail is important because the dome would be a more effective "plug".

Photo taken yesterday the summit crater. Somewhere in the plume, the dome under construction. Image:

CENAPRED

http://translate.google.com/translate?hl=en&sl=auto&tl=en&a...

July 12, 2013
Big explosion this morning at Popocatepetl

http://laculturevolcan.blogspot.fr/2013/07/grosse-explosion-au-popo...
Browsing data VAAC Washington, it may be noted that reference is made to an exhalation which occurred around 8:10 GMT or 3:10 hours Mexican.
These images are indeed to believe that it is not a mere exhalation, as suggested by the VAAC, but a strong and brief explosion.

Two images
The first, taken by the Webcam of Tlamacas shows a very important incandescent zone on the eastern slope of stratovolcano at the hour of the event. This glow zone persists over several successive images, unlike most of the benefits of blocks and bombs, the cooling caused the disappearance them glow very quickly.

Blocks fell on all sides, but the slope is most affected by the explosion. Image: CENAPRED

It persists so that to ask if a lava fell into place, before it fades thereafter.

The other image that can give a fair dimension to the event is provided by the webcam installed in San Nicolas de Los Ranchos (opposite side is precisely). It shows, in a very low cloud ceiling, blocks propelled by the explosion.

blocks rolled up more than 4 km away from the crater into the wooded area, which stops around 3900 m above sea level on the slope. Rare during this crisis were the times or blocks have reached this distance.

Some more or less powerful explosions may occur in the coming days. They are even quite logical in the situation of Popocatepetl.

This is a possible mechanism (hypothetically) to explain the explosive activity "untimely": the dome is in place, although initially composed of a relatively fluid lava began to stiffen as a result of its cooling. It is therefore a more effective cap until it was being built. And while there, after 10 days of intense activity, less gas in the column of magma that built the dome, it is more difficult for him to escape because of the "plug". The latter can therefore generate pressures that create these brief explosions and more or less intense.

In any case it is because the activity may still be some surprises that the alert level is currently maintained by the yellow-3 CENAPRED.

http://translate.google.com/translate?hl=en&sl=auto&tl=en&a...

TRaduced by google