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
Views: 218936
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Comment by Howard on January 21, 2017 at 2:17am
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Spectacular Eruptions at Mexico's Colima Volcano (Jan 19)
Powerful explosions at Colima volcano continue unabated.
Dramatic videos show Colima spewing incandescent bombs all over the summit cone and pyroclastic flows with eruption lightning.
An explosion on January 19 was accompanied by a large plume of ash and smoke that rose some 2,000 metres above the crater, and could be heard 50 miles away.
Following this powerful eruption, another, even stronger explosion - one of the most energetic in recent years - occurred in the evening of the same day at 22:16.
It started with a violent cannon-shot like explosion that propelled incandescent bombs to heights well over 2000 meters and covered the whole cone and its lower flanks with impacts, igniting bush fires. Pyroclastic flows from collapsing material also descended the flanks and an ash plume rose to several kilometers height.
On January 15, powerful vulcanian explosions occurred every several hours, generating dense ash columns that rose 2-4 km, covering the upper slopes of the volcano with bombs. Some of them also generated pyroclastic flows that descended the steep upper flank.
Sources
http://www.cbc.ca/news/technology/colima-erupts-again-volcano-1.394...
https://www.volcanodiscovery.com/colima/news/61207/Colima-volcano-M...
https://www.volcanodiscovery.com/colima/news/61166/Colima-volcano-M...
https://www.volcanodiscovery.com/colima/news/61235/Colima-volcano-M...
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Comment by M. Difato on January 19, 2017 at 4:43pm
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Jalisco bathed in ash after powerful eruption of Colima Volcano in Mexico – State of alert
The municipality of Jalisco is ‘bathed’ in ash after the strong explosion of Colima Volcano on January 18, 2017.
Zapotlán El Grande has experienced a copious rain of crater residues. Civil Protection, police forces and local
firemenurge the community to take precautions. Heavy ashfall has been reported in Zapotlán El Grande, Jalisco after the
latest eruption of the Colima volcano at 00:27am today.Local authorities urged people to take their precautions (masks,
close window, glasses, cover water bodies so they do not contaminate, stay inside the house and sweep the ash) and to
remain vigilant to official information issued by Civil Protection concerning the activity of the volcanic peak.
Zapotlán el Grande is a small municipality, with little more than five hundred square kilometers of surface, located to the
south of Jalisco.
Normally enjoying a pleasant climate, the city is now grey, covered by centimeters of volcanic ashes!
http://strangesounds.org/2017/01/jalisco-bathed-in-ash-after-powerf...
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Explosion at Bogoslof Volcano prompts ninth aviation warning (Jan 18) during weeks-long eruption
http://www.ktuu.com/content/news/Explosion-at-Bogoslof-Volcano-prom...
FAIRBANKS, Alaska (KTUU) - The Alaska Volcano Observatory says it has recorded about 20 explosive events at Bogoslof Volcano since it began erupting about a month ago.
Bogoslof’s most recent explosion occurred at around 1:20 p.m. on Wednesday, and sent up an ash cloud about 31,000 feet high, prompting the ninth red aviation warning AVO has issued for the volcano since mid-December.
AVO Geophysicist Dave Schneider says Wednesday’s eruption was preceded by a series of smaller events earlier in the week.
“It’s safe to say the explosive activity has been variable,” Schneider said. “This was one of the larger events over the past few weeks.”
The ash cloud is not the highest that the volcano has produced during this eruption, with some previous ash clouds reaching as high as 35,000 feet, according to Schneider. But those differences could be more due to atmospheric conditions than the explosion itself.
While the ash cloud does pose a threat to nearby boats and air traffic, wind forecasts show that the fallout is unlikely to be carried towards Dutch Harbor and Unalaska.
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Ongoing Eruptions at Bogoslof Volcano Transform Island (Jan 10)
Alaska's remote Bogoslof volcano keeps erupting, and has demolished much of its Aleutian island home with a string of huge explosions.
The island has added roughly 57,000 square metres of new land, thanks to huge amounts of lava and ash pouring from the active stratovolcano.
Satellite images taken 19 years apart reveal a massive crater created by the volcano that has taken out about a third of the island's landmass.
The volcano is located about 850 miles southwest of Anchorage, a remote location making observation difficult.
On December 23, observers on a Coast Guard vessel reported spotting ash, lightning, and ejection of incandescent lava.
There have been more than 10 eruptions since mid-December, observatory geophysicist Dave Schneider said.
Prior to that, the last reported eruption was in 1992, when an eruption lasting 19 days sent a cloud rising to 3 km above Bogoslof Island, which was identified on satellite imagery.
Chris Waythomas, a geologist at the Alaska Volcano Observatory, noted how the landscape has changed in a pair of satellite photos taken nearly 19 years apart.
Ash has built up, causing more mass at the northern tip of the island, while the underwater volcano has also created a huge crater that has taken out a third of the island's landmass.
The island is home to a large population of fur seals, who may have been impacted by the relentless eruptions.
Sources
http://www.dailymail.co.uk/sciencetech/article-4116742/Incredible-i...
http://www.cbsnews.com/news/bogoslof-island-alaska-eruptions-photog...
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Comment by lonne rey on January 11, 2017 at 11:18pm
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Earthquake triggers strong eruption at Sinabung volcano in Indonesia – lahar alert
http://strangesounds.org/2017/01/earthquake-triggers-strong-eruptio...
A strong explosion was recorded at Sinabung volcano on January 9, 2017.
It was triggered by a volcanic earthquake that occurred about 8 minutes before.
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Major Explosions Continue at Alaska's Bogoslof Volcano (Jan 4)
Another major explosion occurred at the volcano today producing an ash plume that reached 33,000 ft. The Alaska Volcano Observatory reported a strong volcanic seismic signal from volcano starting at 21:18 local time January 3 and lasting approximately 5 minutes. In addition, a series of lightning strikes were identified by the World Wide Lightning Location Network.
On December 31, the 6th major explosion during the current eruption cycle was recorded. The Alaska Volcano Observatory detected a strong seismic signal (captured on neighboring islands) and a swarm of lightning strikes typical for large eruption ash plumes near the volcano and extending north. Weather cloud tops at 30,000 ft prevented visual and other satellite confirmation. That eruption started presumably at 22:30 local time.
Another relatively large ash-producing explosive occurred on December 30 at 23:45 local time. The eruption was inferred from seismic data on nearby islands and seen in recent satellite images. The resulting ash plume was estimated to reach around 20,000 ft altitude and drifting NE.
Source
https://www.volcanodiscovery.com/bogoslof/news/60893/Bogoslof-volca...
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Alaska's Bogoslof Volcano Under High Alert After Another Eruption (Dec 26)
The Aleutian Islands' Bogoslof volcano is again under the highest alert level after another eruption on Monday producing a 30,000-ft ash cloud.
Temperatures recorded on cloud tops suggested an ash cloud that reached 30,000 feet.
Lightning and seismic data signaled the eruption.
The volcano erupted three times last week, with one ash cloud reaching 35,000 feet.
The Alaska Volcano Observatory posted a Monday afternoon update raising the alert level to "warning" for Bogoslof, about 60 miles west of Unalaska, and its aviation color code to red. Seismic data and satellite images showed an "ash-producing eruption" and cloud at the volcano just after 2 p.m. Monday, following at least three last week that reshaped much of low-lying Bogoslof Island.
In an update posted at 3 a.m. Tuesday, the National Weather Service's Alaska Aviation Weather Unit said that volcanic ash from Bogoslof was no longer visible on satellite images.
Sources
https://www.adn.com/alaska-news/science/2016/12/27/bogoslof-volcano...
http://www.ktuu.com/content/news/Alaska-volcano-erupts-sends-up-ash...
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Mexico's Colima Volcano Erupts, 1.5 Mile Ash Plume (Dec 27)
Mexican authorities have set up exclusion zones surrounding the Colima volcano following increased volcanic activity.
An eruption early Tuesday created an ash plume about 1.5 miles tall with the possibility of ash falling up to 30 miles away from the volcano.
Authorities have also declared an exclusion zone in neighboring Jalisco state.
"Respect the radius of exclusion of 4.6 miles in Jalisco and 7.4 miles in Colima," the Interior Ministry said in a statement.
The Interior Ministry said ash will mostly affect areas east and west of the volcano, while areas within about three miles of the volcano are at risk of falling volcanic debris.
Source
http://www.upi.com/Top_News/World-News/2016/12/27/Mexicos-Colima-vo...
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Peru’s Sabancaya Volcano Roars to Life (Dec 26)
Peru's Sabancaya volcano rumbled back to life on Monday, spewing ash and smoke some 11,500 feet into the sky, covering a radius over 30 kilometres, in the latest of a series of explosions.
The local authorities warned surrounding communities could be affected by ash from the volcano, which erupted at 8.24am local time.
The volcano had similar explosions on Dec 16 when it sent a plume of smoke 2,500 metres into the sky.
Sources
http://www.straitstimes.com/world/americas/perus-sabancaya-volcano-...
https://www.tvnz.co.nz/one-news/world/video-peru-volcano-comes-life...
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Escalating Activity at Alaska's Bogoslof Volcano (Dec 23)
On December 21, a strong explosion produced an ash plume that showed up on satellite data and was observed by pilots in the area. According to this data, an ash column rose to approx. 10 km altitude and quickly dissipated to the south.
On December 22, another powerful explosion occurred at the volcano at 17:20 local time.
This second eruption was much stronger and richer in ash than the first one detected the night before.
It produced a relatively large ash plume that rose to 35,000 ft (12 km) altitude and drifted NE at 40 knots. The aviation color code was immediately raised to red; this plume was very dangerous for aircraft in the area who should now avoid the vicinity of the island.
Satellite data shows the plume clearly:
The December 22 eruption originated from a partially submerged vent and had a major impact on the morphology of the island itself.
A new, small island has formed just offshore of the northeast end of the main island. The former shore and much of the northeast side of Bogoslof Island adjacent to this island has been largely removed, and deposition of material has occurred on the west side of the island. The excavated area of the former northeast shore is likely the vent for this recent eruption, which appears to be just below sea level.
Analysis of shoreline change and vent location from the eruption of Bogoslof volcano. The base image was collected on March 19, 2015 and the analysis was conducted on data from December 22, 2016 after the large explosive eruption on December 21, 2016. Note that the location of the vent for the eruption was underwater or near the shoreline on the NE part of Bogoslof Island. Deposits have enlarged portions of the island and are interpreted to be comprised of coarse-grained volcanic ash and blocks of lava.
On December 23, another explosive eruption occurred at the volcano at around 09:30 local time. The alert level of Bogoslof was raised back to red.
A Coast Guard ship in the vicinity reported ash emission as well as ejection of lava and fragmental material. The eruption cloud did not penetrate the regional cloud tops at 30,000 ft and winds are to the north-northeast. According to the Coast Guard, ash emission subsided at about 10:37 AKST (19:37 UTC). On the basis of this information, the Aviation Color Code is raised to RED and the Alert Level to WARNING.
There is no monitoring of the volcano on the remote island itself and not much is known about its activity and typical behavior.
The last known eruption of Bogoslof volcano was in 1992 near the northern shore of the small island. A vent breached the sea surface producing surtseyan activity before building a new lava dome that eventually reached about 150 m height. Similar events had also occurred in 1927 and 1786, but only small remnants of the edifices produced by those earlier eruptions have survived the erosive action of the arctic ocean.
Sources
https://www.volcanodiscovery.com/bogoslof/news/60597/Bogoslof-volca...
https://www.adn.com/alaska-news/science/2016/12/22/aleutians-bogosl...
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