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 Howard on November 21, 2013 at 6:49am
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Mexico’s Colima Volcano Erupts (Nov 18)
On Monday night and Tuesday morning, Mexico's Colima volcano re-awakened with two powerful eruptions, spilling lava down its slopes and spewing ash that reached several villages including Cheese, the municipality of Cuauhtémoc, Colima, and some towns in the state of Jalisco. From the city of Colima there was a big cloud of steam that rose to just over 2 miles.
Source (translated)
http://www.eluniversal.com.mx/estados/2013/colima-volcan-fuego-ceni...
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Comment by Kojima on November 21, 2013 at 1:16am
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Nishima-Shima volcano (Japan): submarine volcanic eruption gives bi... [Volcano Discovery; 20 November, 2013]
Nishima-Shima volcano (Japan): submarine volcanic eruption gives birth to new island
A new island was born today in the Pacific Ocean in Japan's Izu (or Volcano) island chain. It is produced by a new submarine eruption which is currently taking place about 500 m southeast of Nishino-Shima island.
The eruption was first spotted by Japanese navy this morning at 10:20 (local time) who documented surtseyan activity at the eruption site (explosive interaction of sea-water and lava, generating violent jets of steam and ash). It appears that the eruption has already built an island of about 200 m diameter in size, which suggests that the vent was already located in very shallow waters.
A small steam and ash plume rising to about 2000 ft (600 m) was reported by VAAC Tokyo. The last known eruption of the volcano occurred in 1973 .
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Comment by jorge namour on November 20, 2013 at 6:14pm
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Posted by Ren on November 20, 2013
https://www.facebook.com/VolcanoMonitor
Eruption has occurred on Nishinoshima in the ironically named Volcano Islands off Japan
https://www.facebook.com/pages/Volcano-Planet/358876530789142
http://www.volcanoplanet.co.uk/apps/blog/show/36501529-eruption-nea...
Eruption near Japanese island
It has been reported that an eruption had occurred on Nishino-shima in the Volcano Islands in the Pacific Ocean. At around 10:00 the Japanese Maritime Self-Defence Force discovered an ash plume rising from the area and at approximately 16:00 the Japanese Coast Guard confirmed that a black plume has been rising from a new island (about 200m in diameter) around 500m to the southeast of Nishino-shima. The last eruption of Nishino-shima came in 1973-1974 when an eruption merged a few islands into one.
Eruption plume seen rising from a newly formed island close to Nishino-shima. PHOTO SOURCE: Japanese Coast guard.
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Nov 17, 2013
Volcano discovered smoldering under a kilometer of ice in West Antarctica
http://phys.org/news/2013-11-volcano-smoldering-kilometer-ice-west....
http://www.earth-of-fire.com/pages/antarctica-a-new-active-volcano-...
In January 2010 a team of scientists had set up two crossing lines of seismographs across Marie Byrd Land in West Antarctica. It was the first time the scientists had deployed many instruments in the interior of the continent that could operate year-round even in the coldest parts of Antarctica.
Like a giant CT machine, the seismograph array used disturbances created by distant earthquakes to make images of the ice and rock deep within West Antarctica.
In the meantime, automated-event-detection software was put to work to comb the data for anything unusual.
When it found two bursts of seismic events between January 2010 and March 2011, Wiens' PhD student Amanda Lough looked more closely to see what was rattling the continent's bones.
Was it rock grinding on rock, ice groaning over ice, or, perhaps, hot gases and liquid rock forcing their way through cracks in a volcanic complex?
Uncertain at first, the more Lough and her colleagues looked, the more convinced they became that a new volcano was forming a kilometer beneath the ice.
The discovery of the new as yet unnamed volcano is announced in the Nov. 17 advanced online issue of Nature Geoscience.
In 2010 many of the instruments were moved to West Antarctica and Wiens asked Lough to look at the seismic data coming in, the first large-scale dataset from this part of the continent.
"I started seeing events that kept occurring at the same location
youngest ones."
The events were weak and very low frequency, which strongly suggested they weren't tectonic in origin. While low-magnitude seismic events of tectonic origin typically have frequencies of 10 to 20 cycles per second, this shaking was dominated by frequencies of 2 to 4 cycles per second.
But glacial processes can generate low-frequency events. If the events weren't tectonic could they be glacial?
To probe farther, Lough used a global computer model of seismic velocities to "relocate" the hypocenters of the events to account for the known seismic velocities along different paths through the Earth. This procedure collapsed the swarm clusters to a third their original size.
It also showed that almost all of the events had occurred at depths of 25 to 40 kilometers (15 to 25 miles below the surface). This is extraordinarily deep—deep enough to be near the boundary between the earth's crust and mantle, called the Moho, and more or less rules out a glacial origin.
It also casts doubt on a tectonic one. "A tectonic event might have a hypocenter 10 to 15 kilometers (6 to 9 miles) deep, but at 25 to 40 kilometers, these were way too deep," Lough says.
A colleague suggested that the event waveforms looked like Deep Long Period earthquakes, or DPLs, which occur in volcanic areas, have the same frequency characteristics and are as deep. "Everything matches up," Lough says.
The seismologists also talked to Duncan Young and Don Blankenship of the University of Texas who fly airborne radar over Antarctica to produce topographic maps of the bedrock. "In these maps, you can see that there's elevation in the bed topography at the same location as the seismic events," Lough says.
The radar images also showed a layer of ash buried under the ice. "They see this layer all around our group of earthquakes and only in this area," Lough says.
Their best guess is that it came from Mount Waesche, an existing volcano near Mt Sidley. But that is also interesting because scientists had no idea when Mount Waesche was last active, and the ash layer is sets the age of the eruption at 8,000 years ago.
What's up down there?
The case for volcanic origin has been made. But what exactly is causing the seismic activity?
"Most mountains in Antarctica are not volcanic," Wiens says, "but most in this area are. Is it because East and West Antarctica are slowly rifting apart? We don't know exactly. But we think there is probably a hot spot in the mantle here producing magma far beneath the surface."
"People aren't really sure what causes DPLs," Lough says. "It seems to vary by volcanic complex, but most people think it's the movement of magma and other fluids that leads to pressure-induced vibrations in cracks within volcanic and hydrothermal systems."
Will the new volcano erupt?
"Definitely," Lough says. "In fact because of the radar shows a mountain beneath the ice I think it has erupted in the past, before the rumblings we recorded.
Will the eruptions punch through a kilometer or more of ice above it?
The scientists calculated that an enormous eruption, one that released a thousand times more energy than the typical eruption, would be necessary to breach the ice above the volcano.
On the other hand a subglacial eruption and the accompanying heat flow will melt a lot of ice. "The volcano will create millions of gallons of water beneath the ice—many lakes full," says Wiens. This water will rush beneath the ice towards the sea and feed into the hydrological catchment of the MacAyeal Ice Stream, one of several major ice streams draining ice from Marie Byrd Land into the Ross Ice Shelf.
By lubricating the bedrock, it will speed the flow of the overlying ice, perhaps increasing the rate of ice-mass loss in West Antarctica.
"We weren't expecting to find anything like this," Wiens says
Read more at: http://phys.org/news/2013-11-volcano-smoldering-kilometer-ice-west....
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Comment by Mark on November 19, 2013 at 9:26am
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Mount Sinabung has now been erupting for most of November:
http://www.theguardian.com/world/gallery/2013/nov/18/mount-sinabung...
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Indonesia's Sinabung and Merapi Volcanoes Erupt Nearly Simultaneously, Sparking Mass Evacuations (Nov 18)
Two volcanoes in Indonesia over 1,000 miles apart have erupted within hours of one another, disrupting flights and sparking a mass evacuation of thousands of displaced villagers while others internal refugees still wait to return to their homes after an earlier eruption.
Mount Sinabung spewed ash 8,000 meters (26,250 feet) into the air. A total of 6,000 villagers living near the mountain in north Sumatra have been evacuated from the most recent eruption and one from earlier in November.
People displaced by the volcano's earlier eruption were still housed in temporary shelters set up by emergency services, unable to return to their homes. The volcano has erupted several times since September.
Officials raised the alert status of Sinabung to the second-highest level after an eruption early this month, prompting evacuation of more than 6,000 villagers living near its slopes. Its activities have continued since then, sometimes unleashing lava down the slopes.
Transportation Ministry spokesman Bambang Ervan said his office has issued a notice Monday for all airlines to avoid routes near the mountain.
Residents in Medan, the provincial capital about 50 kilometers (30 miles) northeastward, could see black smokes billowing from Sinabung.
Hours earlier, Mount Merapi, Indonesia most volatile volcano in Central Java, spewed volcanic ash about 2,000 meters (6,500 feet) into the sky, causing ash to fall in several towns.
The massive rumbling from Mount Merapi on Monday morning caused panic among hundreds of residents living on the slopes of the volcano who promptly headed to evacuation assembly points.
The volcano, located on the border between Yogyakarta and Central Java provinces, erupted at around 4:53 a.m., spewing volcanic materials 2 kilometers into the air and covering areas east of the volcano with dust and ash.
The volcanic ash also affected residents in nearby towns. In Surakarta, Central Java, residents were shocked by the sight of volcanic ash covering streets, gardens and roofs. The ash rain continued until around 10 a.m. on Monday.
Surowedanan village in Boyolali, located around 17 km from the peak of Mount Merapi, was also covered by volcanic ash. “This morning, when I went out of the house at around 5 a.m., I saw ash everywhere,” said Veronica Maria Sayektiana, of Surowedanan. According to Veronica, residents were wearing masks when they ventured out of their homes as the ash was still falling along with the drizzle.
Sources
http://abcnews.go.com/International/wireStory/indonesias-sinabung-m...
http://www.thejakartapost.com/news/2013/11/19/hundreds-villagers-fl...
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16° Parossismo Etna- SICILY ITALY 16-17 novembre 2013
https://www.facebook.com/VOLCANOgroup
https://www.facebook.com/december212012/media_set?set=a.10202440093...
https://www.facebook.com/photo.php?fbid=10202443198983520&set=a...
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Comment by SongStar101 on November 15, 2013 at 1:12pm
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Mt Sinabung Erupts Again Forcing the Evacuation of Thousands - Nov 14
Mt Sinabung erupted yet again on the western Indonesian island of Sumatra, forcing thousands of villagers to evacuate, officials said. Mount Sinabung spewed a 7-km (4.3-mile) column of ash into the air Sunday through Thursday, prompting authorities to impose a 3-km evacuation radius.
Indonesian farmers continued to harvest their crops Thursday even as the volcano erupted less than two and a half miles away, coating their fields in ash.
Up to 4,300 residents have been evacuated from five villages in North Sumatra due to the eruptions of Mount Sinabung, according to Getty Images. The volcano has been spewing ash and lava 2.5 miles into the sky.
The Jakarta Globe reported that tens of thousands of hectares of farmland had been affected, with losses to farmers expected to amount to millions of dollars.
Sources
http://photoblog.nbcnews.com/_news/2013/11/15/21475021-bitter-harve...
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Japan' Sakurajima Volcanic Explosions Nearly Continuous (Nov 14)
The Showa crater has been producing nearly constant ash emissions and vulcanian explosions with ash plumes rising up to 14,000 ft (4.2 km) altitude.
Source
http://www.volcanodiscovery.com/sakurajima/news/38782/Sakurajima-vo...
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Monday, November 11. 2013
Etna,- SICILY ITALY extraordinary spectacle at sunset here is the extremely rare "smoke ring" [PHOTOS]
It is repeated tonight at sunset on Mount Etna quit rare and exceptional, 6 months after the last time when, in April, the volcano had surprised all ( the pictures ). At sunset, after the paroxysm of this morning, the New Southeast Crater / East, the volcano has produced many many smoke rings: a rare phenomenon and particularly fascinating. It is a visible vortex ring of steam and gas which is expelled from a vent volcanic
http://translate.google.com.ar/translate?sl=it&tl=en&js=n&a...
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