
http://www.telegraph.co.uk/news/worldnews/southamerica/chile/1923720/Thousands-flee-as-Chaiten-volcano-erupts-in-Chile.html
| Quote From Source: |
The volcano, 800 miles south of the capital Santiago, had not erupted for more than 450 years and was considered dormant. But it is now belching enormous clouds of thick ash that have drifted across a large area in both Chile and the Argentine province of Chubut, where an airport was forced to close. |
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Here is more information. It seems to conflict with information in the first story in regards to dormancy.
| Quote From Source: |
The Chaiten volcano has "probably been dormant for about 9,000 or 10,000 years but that's not unusual," said Charles Stern, a professor of volcanology at the University of Colorado who specializes in Andes volcanoes. |
| Click source url to view entire story. |
| Quote From Source: |
The eruptions shot ash up to 1,600 feet (500 meters) into the air, said Santos Alvarez, an official from the town of Ubinas. |
| Click source url to view entire story. |
A story by the Associated Press states...
| Quote From Source: |
The Chaiten volcano spewed light ash on a nearly deserted village Saturday, two days after its first eruption in thousands of years. |
| Click source url to view entire story. |
| Quote From Source: |
the volcano belched fat smoke plumes that at times rose as high as 12 miles (20 kilometers) into the air, the government's Emergency Bureau said |
| Click source url to view entire story. |
I've seen 10miles reported (50,000 ft) on a blog, but cannot confirm yet.
However high it is, it most certainly is more than 1600 ft:

Original Image: www.telegraph.co.uk
^^^Awesome pic....& if thats 1600ft...then Everest is like 1500
Yeah that is certainly more than 1600 ft high. I could piss 1600 feet high with a hard-on and I'm pretty sure that volcano packs a little more punch than I do.
thats still nothing to be ashamed of fatal...
and as of today, i believe it was still erupting.
how long did pinatubo erupt for?
it is in a remote area so at first they thought it was another volcano which might clear up the whole 450 yr thing.
Here is a way to find out who is a Google expert. What was the last volcano to erupt that hadn't erupted before in thousands of years? They say maybe 9,000 or 10,000. But lets just go back 5,000 years. What volcano was it and how big was the eruption?
First person to find a volcano that has erupted since 1990 but previously hadn't erupted for 5,000 years or longer gets 5,000 points.
Montserrat, West Indies
If you are talking about Soufrière Hills then not quite.
http://www.volcano.si.edu/world/volcano.cfm?vnum=1600-05=&volpage=erupt
Previous event was approximately 1630.
Tha answer is: There haven't been any eruptions of 5000 year dormant volcanos since 1990. Pinitubo had been dormant for 450 years. St. Helens in 1980 had been dormant for 123 years.
| Quote From Source: |
| There is no record of the volcano erupting in the last 2,000 years, according to Sernageomin, a government mining and geology agency. |
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the caldera is 3.5 km wide according to this. . .
http://www.volcano.si.edu/world/volcano.cfm?vnum=1508-041&volpage=photos&photo=110054
By comparison, Pinatubo is 2.5 km wide
http://en.wikipedia.org/wiki/Mount_Pinatubo
| Quote From Source: |
| Scientists in Chile are now frantically collecting data in an attempt to measure how much magma has built up under the volcano. "This could be an isolated incident or the start of quite a long period of rumbling," said Prof Clive Oppenhiemer, a volcanologist at Cambridge University. Chaiten is a caldera volcano, which can explode in a cataclysmic eruption, emptying the magma chamber and causing the dome and surrounding land to collapse into the void beneath. |
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ready for great sunsets and, oh yeah, global cooling ??

just throw this in with the negative pdo and a quiet sun...things could be getting real interesting soon.
and according to volcanolive.com, the past eruptions on Soufrière Hills were the only ones in written history. there have been a few failed eruptions but no actual true eruptions.
http://www.volcanolive.com/montserrat.html
| Quoting Indy - posted on 5/4/2008 at 03:13 |
Here is a way to find out who is a Google expert. What was the last volcano to erupt that hadn't erupted before in thousands of years? They say maybe 9,000 or 10,000. But lets just go back 5,000 years. What volcano was it and how big was the eruption? First person to find a volcano that has erupted since 1990 but previously hadn't erupted for 5,000 years or longer gets 5,000 points. |
Vesuvius, Etna, Santorini ...
http://volcano.und.edu/vwdocs/vw_hyperexchange/veiTables/europe.html
| Quote From Source: |
| The islands of Santorini did not form from a single event, but rather from a variety of eruptions over a long period of time. Geologic studies indicate that at least 12 eruptive phases have occurred over the last one million years. The late Bronze Age event was a Plinian eruption of epic proportions, with an estimated Volcanic Explosivity Index (VEI) of 6.9. The immensity of this eruption is equaled or surpassed by only seven other terrestrial eruptions in the past four millennia. |
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Tambora, Indonesia 1815
Krakatau, Indonesia 1883
http://volcano.und.edu/vwdocs/vw_hyperexchange/deadly_volcs.html
The eruption of ash was certainly powerful. With the cloud reaching nearly 60,000 feet into the atmosphere there was obviously some force behind it.
So we are dealing with a volcano that was dormant long enough to potentially unleash a climate changing eruption at the same time we've entered a cool PDO phase and are in the middle of a solar minimum.
This eruption will be bad if it only reaches the level of Pinatubo.
Perhaps the only saving grace could be that this mountain is located in the southern hemisphere.
| Quoting Indy - posted on 5/4/2008 at 18:58 |
This eruption will be bad if it only reaches the level of Pinatubo. Perhaps the only saving grace could be that this mountain is located in the southern hemisphere. |
Dan, that picture ROCKS

Yeah there are some wicked ass pics on this page. 1-14 are incredible.
http://megagalerias.terra.cl/galerias/index.cfm?id_galeria=30734
and this one...
http://megagalerias.terra.cl/galerias/index.cfm?id_galeria=30769
Start with number 31 and go up. There are some way too cool pics in there. It really is quite beautiful.
just curious...but how much CO2 does a volcano such as this release???
& the pics are awesome
More on today's blast.
Satellite pic: http://rapidfire.sci.gsfc.nasa.gov/gallery/?2008124-0503/Chile.A2008124.1435.250m.jpg
the scary thing is that this happened without any sort of warning.
I love this pic of the ash plume ... it's over 400 miles long!

Original Image: rapidfire.sci.gsfc.nasa.gov
this is great, the ash should be arriving over us just in time for next winter, lol.
all joking aside, the is a good write up on www.icecap.us on the volcano and its possible effects.
I wonder how many cubic km of ash and stuff this volcano will put out?
Where on the VEI scale will it fall? I'm thinking a 5 or even a 6 if it decides to come unassed and blow its self up.
http://volcano.und.edu/vwdocs/eruption_scale.html
Unassed? Is that even a word? lol. It is already a big eruption I think with it lasting 5 days. After being dormant for 9,000 years who knows how much stuff this thing could have built up.
| Quoting Indy - posted on 5/6/2008 at 18:26 |
Unassed? Is that even a word? lol. It is already a big eruption I think with it lasting 5 days. After being dormant for 9,000 years who knows how much stuff this thing could have built up. |
| Quote From Source: |
The volcano, 800 miles south of the capital Santiago, had not erupted for more than 450 years and was considered dormant. |
| Click source url to view entire story. |
| Quote From Source: |
| More than 4,000 people had fled the first eruptions late last week, which were the volcano's first in 450 years. |
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yeah, well its listed as 450, 2000, 9000 ... seems nobody agrees on that.
but damn, if it goes nuke it'll put a buttload of ash in the air.
ok, so i think what happened was that the actual volcano hasnt gone since 9000. the problem was that when it first was reported, they reported it as another volcano in the area. that volcano last erupted 450 years ago. i believe the media didnt fact check, big surprise, and just combined all of those dates because they heard them tossed around at one point.
| Quote From Source: |
| The long-dormant Chaiten volcano blasted ash some 20 miles (30 kilometers) into the Andean sky on Tuesday, forcing thousands to evacuate and fouling a huge stretch of the South American continent. The thick column of ash climbed into the stratosphere and blew eastward for hundreds of miles (kilometers) over Patagonia to the Atlantic Ocean, forcing schools and a regional airport to close. Citizens of both countries were advised to wear masks to avoid breathing the dangerous fallout. The five-day-old eruption is the first in at least 9,000 years for the volcano in southern Chile, according to volcanologists at the Smithsonian Institution in Washington. |
| Click source url to view entire story. |
| Quote From Source: |
| A Chilean government vulcanologist warned that the eruption was only at the beginning stage and that an explosive eruption was possible. "There could be a major explosion that could collapse the volcano's cone," said Luis Lara of the National Geologic and Mining Service. |
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so heres the deal...when pinatubo went, there was a tropical system slamming into the island. so the question is, do weather systems help keep the ash up in the air and scatter it more widely or does the precip from this systems help keep the ash and gases lower to the ground and from spreading over larger areas?
BTW since we can't seem to get a clear answer on any historic volcanic eruptions I added 5000 points to Mikes account for having a realistic answer with Montserrat.
so the ash column is now being reported to over 100,000 ft...a little be higher than the 60,000 ft they were reporting.
im thinking vei 5...
If it made it to 100,000 feet then that is Pinatubo level... vei 6. Lets see what the rest of the week does.
thanks Indy
is it me or has the US new media paid no attention to this eruption? is it cuz there is relatively low population surrounding it? i guess they dont realize the implications it could have worldwide...or it goes against the global warming scare so its not newsworthy.
No one died. Or at least not as many as in Myanmar.
I haven't heard anything about except from here.
| Quoting MountainManMike - posted on 5/6/2008 at 23:34 |
is it me or has the US new media paid no attention to this eruption? is it cuz there is relatively low population surrounding it? i guess they dont realize the implications it could have worldwide...or it goes against the global warming scare so its not newsworthy. |
its all about the body count. one of the reasons I hate MSM.
well, al gore cant blame this on global warming so its not as newsworthy.
| Quoting MountainManMike - posted on 5/7/2008 at 00:56 |
well, al gore cant blame this on global warming so its not as newsworthy. |
Al Gore = Ambulance chaser. It absolutely disgusts me that he uses the hurricane in Myanmar to further his agenda. The man is a spineless pathetic bastard.
agreed
supposedly not a whole lot of sulfur dioxide with this one...only a few thousand pounds so far as compared with pinatubo which put out 20 million tons.
i can see the headline next march now. "Volcano slows global warming for a winter"
right now, not a lot of sulfur dioxide released to cause any cooling but im sure the alarmists with blame the volcano to prolong their lie another year.
| Quote From Source: |
"There could be a major explosion that could collapse the volcano's cone," said Luis Lara of the National Geologic and Mining Service. There have been reports of further activity in the Chaiten volcano in Chile, which began erupting on Friday for the first time in some 9,000 years. Army staff supervising the evacuation of nearby towns reported hearing rumbling noises underground and seeing flashes of light overnight. The authorities say they have now completed their evacuation of the immediate area in the Patagonia region. Experts say the volcano could continue to erupt for weeks or months. A layer of ash over 15cm (6in) thick has built up in some places and ground-water supplies have been contaminated. A number of animals left behind have been rescued, but many have been reported dead, officials said. Columns of smoke and ash have also reached neighbouring Argentina, disrupting flights. |
| Click source url to view entire story. |
I think this may be the final say in how long ago it erupted...
| Quote From Source: |
| Stern said the pyroclastic flow and ash-fall deposits he and Chilean colleagues analyzed in 2004 indicate Chaiten last erupted about 9,370 years ago. "We consider the lifespan of Andean volcanoes to be about 1 million years, which is supported by this new eruption," he said. |
| Click source url to view entire story. |
At this point, I don't think anyone has one farking clue what's going to happen.
i agree matt...they seem to be as good at forecasting the future as the IPCC, lol.
| Quote From Source: |
| "The volcano went into a higher state of activity this morning," Stern. "What happens after today is anybody's guess." "In to order to significantly affect the climate, a volcano has to put out a lot of sulfur dioxide aerosols into the stratosphere for an extended period, which then reflects sunlight away from the Earth," he said. "Our data from Chaiten showed the last eruption was high in silica and low in sulfur." |
| Click source url to view entire story. |
a higher state of activity
hmmmm, methinks the party's not over yet.
The image is about 2 days old but it shows the ash output from the volcano. It looked significant back then. Supposedly the eruption has ramped up quite a bit as of yesterday so I can only imagine what it looks like now.
excellent pic Indy.
| Quote From Source: |
| A SOUTH Wales man spoke today of his fears after he was trapped under a thick cloud of ash when a giant volcano erupted near the Welsh colony of Patagonia. James Williams, 28, from Llantrisant, who has been in South America since last April promoting the Welsh language, said people were “trying to stay positive” but finding it hard not knowing if the giant Chaiten volcano would erupt again. As he spoke, there were more reports from Chile of further activity in the volcano, which began erupting on Friday for the first time in 9,000 years, sending plumes of smoke from the Andes mountains across the whole South American continent to the Atlantic Ocean. Army staff supervising the evacuation of nearby towns yesterday reported hearing rumbling noises underground and seeing flashes of light overnight, while experts said the volcano could continue to erupt for weeks or months. |
| Click source url to view entire story. |
| Quote From Source: |
| PUERTO MONTT, Chile (Reuters) - Chile ordered hold-out residents to flee from an erupting volcano in the remote region of Patagonia on Thursday and vowed to remove them by force if they refuse to obey. The military evacuated a small contingent of troops and journalists from near Chaiten volcano in southern Chile before dawn on Thursday, after it spat a surge of fiery material. But a few civilians refused to leave two villages near the volcano, which began erupting last week for the first time in thousands of years. A strong smell of sulfur hung in the air around the village of Chaiten, just 6 miles from the volcano. |
| Click source url to view entire story. |
Pics From Nasa
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| A towering plume of ash from an erupting volcano in Chile's remote Patagonia could rain down on the surrounding area and cause devastating damage, a volcano expert warned on Friday. Luis Lara, a scientist with the government's geology and mining agency, said the column, which has soared 7.5 miles (12 km) into the air, was at a critical stage. An abrupt descent would blanket vast areas with deadly hot gas, ash and molten rock, he said. Authorities have evacuated thousands of people from the immediate vicinity of Chaiten volcano, 760 miles (1,220 km) south of the capital Santiago, and are forcing people within a 30-mile (50-km) radius to leave. Chaiten began erupting eight days ago for the first time in thousands of years. "We are at a critical point of this phase given the characteristics (of the eruption) have remained the same for several days," Lara said. "The volcano is now at its limit and one possibility is that the column could collapse quickly, generating flows of ... material down its ravines," he said. |
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How much longer is this going to continue? Will this result in the collapse of the entire system when the chamber empties?
Here is an interesting quote from another forum.
| Quote From Source: |
That particular figure I got from Wikipedia, i.e. "it ejected more than 0.67 cubic miles (2.8 cubic km) of material". However, it appears the 2.8 cubic km referred to was actually the amount of material that slid off the mountain, not the ejecta. So that means Chaiten has actually ejected at least 50% more than St Helens. (Sorry about that.) |
| Click source url to view entire story. |
I moved this thread from "Climate Change" to Global Volcanism
| Quote From Source: |
| The eruption of a long-dormant volcano in southern Chile has created an enormous cloud of ash that has spread hundreds of kilometres to the east, across Argentina and Uruguay. The authorities in Chile have set up a 50-kilometre exclusion area around the Chaiten volcano and evacuated at least 6,000 people. Visiting some of the evacuees, Chilean President Michelle Bachelet has said the lava could wipe out the closest town of Chaiten within minutes if the eruption escalates. |
| Click source url to view entire story. |
| Quote From Source: |
| PUERTO MONTT, Chile, May 13 (Reuters) - A towering cloud of hot ash, gas and molten rock spewed miles into the air by a volcano in southern Chile has partially collapsed, raising fears it could smother surrounding villages, an expert said on Tuesday. Luis Lara, a scientist with the government's geology and mining agency, said the column of ash, which had soared as high as 20 miles (30 km), was now about 4.5 miles (7 km). The column of debris, kept aloft by the pressure of constant eruptions, could collapse entirely, smothering the ghost town of Chaiten 6 miles (10 km) away with hot gas, ash and molten rocks. |
| Click source url to view entire story. |
| Quote From Source: |
| THE Welsh colony of Patagonia was last night facing the immediate threat of an earthquake after geologists warned that the enormous Chaiten volcano in neighbouring Chile has a 50% chance of imploding. There were also fears that an earthquake could cause the region’s San Martin reservoir to break its dam, releasing millions of gallons of water towards the town of Trevelin, which has a population of around 6,500. Should the volcano collapse, Patagonia would be left in a state of “permanent night” for several days. |
| Click source url to view entire story. |
On another thread, I saw this post:
On Saturday, April 12 (19,45 hrs), a huge fireball swept down over the Chacarilla Hills that encircle Santiago, Chile’s capital city. Researchers of these phenomena that witnessed the event were able to take photos, and promptly e-mail them to diverse forums. Then, I wonder...could this be related to the Chaitén eruption that began on May 2?
Reports from Chile indicate that the very same day a second volcano, the Mochimahuida, some 40 kilometers to the south of Chaitén, began erupting after having remained dormant for almost two centuries. The Chaitén had last erupted in 7420 B.C., or 9,370 years ago, according to the Chilean National Geological Survey.
More info at:
Cloud of ash and smoke above Michimahuida Volcano visible from Puerto Montt
http://www.emol.com/noticias/ingles/detalle/detallenoticias.asp?idnoticia=302742
Fireball over Chacarillas Mountains
http://noufa2.blogspot.com/2008/05/sorprendente-bolido-aereo-cerros-de.html
Things are really going crazy in that region. If the volcano does collapse I hope it is captured on camera. But I suspect it will happen at night like most great hurricane landfalls. It is like we just aren't entitled to good video :-)
| Quote From Source: |
| SANTIAGO, May 14 (Reuters) - The government on Wednesday declared the evacuated Chilean town of Chaiten off-limits for three months until it is no longer threatened by a cloud of hot ash from an erupting volcano. The Chaiten volcano, six miles (10 km) from the town that had been home to 4,500 people, started erupting on May 2 for the first time in thousands of years, spewing ash, gas and molten rock into the air. The column of debris, kept aloft by the pressure of constant eruptions, could collapse and smother Chaiten. |
| Click source url to view entire story. |
Don't they say bad things happen in 3s?
Myanmar, China, Chili.
There ya go.
Dang! That thing is still erupting? The longer it erupts the more likely I think it is that this volcano collapses in the end.
what doom is next?
volcano - check
cyclone - check
quake - check
I'm thinkin heat wave...
or maybe giant solar flare
| Quoting DanG - posted on 5/15/2008 at 17:02 |
what doom is next? volcano - check cyclone - check quake - check I'm thinkin heat wave... or maybe giant solar flare |
great depression
This story just posted about 2 hours ago states there is concern about this volcano. Here are a couple of quotes from the Reuters report.
| Quote From Source: |
Chile's Chaiten volcano groaned, rumbled and shuddered on Thursday, raising new concerns among authorities, as lightning bolts pierced the huge clouds of hot ash hovering ominously above its crater. |
| Click source url to view entire story. |
| Quote From Source: |
"There's been additional volcanic activity that we're really worried about," regional governor Sergio Galilea told reporters. The Chaiten volcano, 760 miles (1,220 km) south of the capital Santiago, started erupting on May 2 for the first time in thousands of years, spewing ash, gas and molten rock into the air. |
| Click source url to view entire story. |
Krakatau-style?
we all hope NOT

Here is the latest update from Seach on the Chaiten volcano.
| Quote From Source: |
Continuous eruptions are occurring at Chaitén volcano in Chile. The airfield at Chaitén town has been covered by ash and water, and is currently not able to be used. Ash and pumice is floating northwards along the Chile coast. The bay near Chaitén contains run-off from rivers with a milky-green colour. A large amount of sediment has blocked river channels, and lahars will continue to overflow river edges. Over the past two days there has been a marked change in seismic activity at the volcano. Earthquake swarms indicate fracturing of the main conduit, and possible ascent of magma towards the surface. Increasing pressure from magma is creating a potential explosion hazard, and collapse of the dome, generating |
| Click source url to view entire story. |
what worries me is the type of volcano this is. Same as Yellowstone and Lake Taupo.
Those scientists who say this volcano won't have an impact on the northern hemisphere's climate are going to be surprised...that is, if the volcano has a massive eruption (like Lake Taupo).
I've been trying to find any clues as to the size of the magma chamber under Chaiten. A clue may have been found. Look at this link....
http://www.seablogger.com/?p=10708
Lets assume those 5 big quakes marked the outline of the magma chamber. You would be looking at an oblong chamber that is about 45km from one end to another and 30km from one side to another. Give or take a couple of km in length of width. Basically it would look like a stretched out oval. Using what little I remember from geometry I split the thing in half and calculated the area of a parabola. Each half would be 230 km^2. So total surface area would be 460 km^2. Calculating the volume would be a nightmare.
Looking at the number for Yellowstone they have it at 60km x 40km and 10km from top to bottom of the chamber. If a cube that would be 24,000 km^3. But it isn't. The USGS estimates the capacity at 15,000 km^3 or 62.5% of the cubed volume. Since the dimensions above were similar in shape I am going to apply their percentage to Chaiten. But since the chamber is smaller I am going to assume from top to bottom it is smaller as well. This calculation assumes 5km instead of 10km. So 45km x 30km x 5km * .625 = 4,219 km^3.
Of course this makes many assumptions and should in no way be looked at as fact. Just food for thought. If those quakes indeed mark the outline of the magma chamber when you can look at 4,219 km^3 as a pretty accurate representation of the chamber. You don't have to follow volcanoes very long to understand what that implies.
say we had a lake taupo sized eruption down there...how long would it take to change climate up in the states?
we have been talking about how next winter is going to be bad but with an eruption like some in this forum r suggesting, we will be worrying about summers also.
With this being in the southern hemisphere I wouldn't worry too much in the northern hemisphere.
good info and video
http://geology.com/events/chaiten-volcano/
| Quoting Indy - posted on 5/18/2008 at 04:13 |
With this being in the southern hemisphere I wouldn't worry too much in the northern hemisphere. |
| Quoting Indy - posted on 5/18/2008 at 02:12 |
The USGS estimates the capacity at 15,000 km^3 or 62.5% of the cubed volume. So 45km x 30km x 5km * .625 = 4,219 km^3. You don't have to follow volcanoes very long to understand what that implies. |
I just don't see how anything VEI 6 or bigger does not effect the whole planet in one way or another.
Here is a good blog to watch.
http://volcanism.wordpress.com/
Here is the latest from Seach.
| Quote From Source: |
Eruptions continue at Chaitén volcano in Chile. A dome is forming in the active crater, with sporadic explosions and pyroclastic flows. Seismic activity consists of swarm of hybrid events which indicates movement of magmatic fluids and gases, low and high frequency earthquakes. The alert level remains at the highest rating, RED. |
| Click source url to view entire story. |
I think the world press forgot about this Volcano..there is little to no news. Anybody wanna pitch in and get us an update?
| Quoting Indy - posted on 5/22/2008 at 11:02 |
Here is a good blog to watch. http://volcanism.wordpress.com/ |
| Quoting FatalWishes - posted on 5/24/2008 at 11:51 |
I think the world press forgot about this Volcano..there is little to no news. Anybody wanna pitch in and get us an update? |
| Quoting chrisisasavage - posted on 5/24/2008 at 12:47 | ||
They need a death toll to care. |
| Quoting DanG - posted on 5/24/2008 at 13:19 | ||||
sad - but true |
some great pics comparing st helens and this volcano r here:
http://volcanism.wordpress.com/
i know the site has been posted already but the pics r new. caldera sizes r just about the same size.
also, the site talks about how there were some new earthquakes 88 km north of the volcano. it was 22.4 km deep. a 5.4...they say that makes it tectonic but another shallower one was reported at 5.0 and at a depth of 9.8 km. what makes this a bit interesting was that these occured near or under 3 or 4 volcanoes with no historical evidence of eruption.
It has been a month now and the eruption of Chaiten continues.
yeah, but its certainly much smaller these days than at the beginning. does anyone remember if pinatubo had small eruptions afterwards for this long? i also wonder if anyone has found out how much sulfur dioxide has spewed out now at this point.
so it seems like we r out of the woods for any more major eruptions with this volcano in the near future. what do u guys think?
I disagree. You can never be certain with volcanoes...and earthquakes.
Just thought I'd update that Chaiten is still erupting. It was looking as if briefly the end of the eruption was near but since then two new vents have opened up and seismic activity has increased.
im still wondering if there r numbers on the sulfur dioxide amounts its emitted.
also, ive been looking for the number amount of how much sulfur dioxide humans emit. anyone know the numbers on that?
Seems the situation at Chaiten is getting worse.
| Quote From Source: |
The most troubling to me is this part of the report: [The military flyover] spotted two new craters. Officials said they saw bursts of gas coming from different areas around the base of the volcano. This suggests that there is enough pressure under the volcano to start opening new vents. Whether or not this leads to the formation of a ring fracture - the series of fractures around edge of a caldera that facilitate collapse - is pure speculation, but at the very least, this is a new stage of activity at Chaiten. |
| Click source url to view entire story. |
| Quote: |
| Officials said they saw bursts of gas coming from different areas around the base of the volcano. |
| Quote From Source: |
| The eruption of southern Chile's Chaitén Volcano intensified on Friday, inflicting a new round of damage on nearby communities and slowing government-led relief efforts. Local officials said that volcanic activity could be at one of its highest levels since Chaitén began erupting more than one month ago. “Even though the volcano has remained active since its initial explosion, today we can definitely said that the situation has worsened,” said Chilean Defense Minister José Goñi. |
| Click source url to view entire story. |
still, im not too worried.
This winter should be interesting.
last thing i heard though, granted it was last month, was that this had hardly put out any sulfur dioxide during the initial eruption. now, i havent seen any numbers since but i think it wont have too big affect on the winter.
Well, even if the Volcano doesn't noticably affect the climate, it still should be an interesting winter, w/ the Sun being so quite.
and another la nina...
This is getting really bad. The following site has done a great job of covering Chaiten since day one. It is one of the few places you can find translated stories. Not sure who does the translating but it is good info.
http://www.seablogger.com/?cat=22
| Quote From Source: |
A larger survey of dome building shows a partially comparable event, at Mount Lamington in Papua New Guinea, during a 1951 eruption. A violent explosive episode began on January 21. Dome-building commenced four days later. It proceeded at a rate of about 18 cubic meters per second through March 5, when a paroxysmal eruption blew most of the new dome away. After that climactic event, dome building resumed and continued for several more months. At Chaitén the first stage of dome-building was estimated at 37 cubic meters per second. It has now accelerated past fifty. No wonder the photos are so striking. This is an event outside historic parameters. |
| Click source url to view entire story. |
| Quote From Source: |
At the least, one must wonder about the mechanical stability of the huge, teetering dome. Collapse could release internal pressure and trigger an explosive eruption that would destroy the edifice. It is also possible that rapid evacuation of the magma chamber could lead to a larger collapse of the entire caldera floor. This would probably induce an eruption with serious global consequences. We can only watch and wait. |
| Click source url to view entire story. |
Here is the latest from Fresh Bilge.
| Quote From Source: |
I received the latest information on Chaitén activity overnight. Instruments recorded a doubling in volcano-tectonic earthquakes during the last couple of days, and increases in magnitude as well. Small quakes reached 115/day, with 25-30 greater than magnitude 2.0. Epicenters are under the west and southwest part of the caldera (closer to the town than before). They are said to be in the lower part of the upper volcanic system, whatever that is thought to mean. Yet there is no harmonic tremor, which would indicate movement of magma. The VT signals are characteristic of rock-breaking, but there is no indication of what is breaking them. Sernageomin is evidently puzzled by the activity, and declines to draw any conclusion. |
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Tambora took 3 years to completely blow it's wad. IT started reupting is 1812 and came unhinged in 1815.
and that would leave us at 2011 or 2012? hmm...
| Quoting MountainManMike - posted on 7/1/2008 at 16:33 |
and that would leave us at 2011 or 2012? hmm... |
This is one of the Chaitén cams. It is still erupting.
did tambora start with a big bang though?
The only reference they make to the pre-1815 monterous eruption on Wikipedia is:
| Quote: |
| In 1812, the caldera began to rumble and generated a dark cloud |
| Quoting MattN - posted on 7/1/2008 at 20:21 |
It has rumbled and generated a dark cloud.... |
I used to keep track of everything that pointed to 2012...
now there's SO much, I gave up.
sounds like a lot of volcanoes though, matt.
How many of those started with a plume 1.5 times the size of St. Helen's eruption, after being dormant for 9000 years, and have a 2 mile caldera?
I'm not saying Chaiten is going to blow off big, just it's not a normal situation.
If this were anywhere in the Northern hemisphere - it would be big news.
good to continue watching this puppy.

The way it just blew to life w/o warning is spooky.
was it being monitored though...i wonder if it had had as much as say yellowstone or other big name volcanoes, if we would have had warning with it.
but on the other side of things, if it did indeed give no warning, whats really spooky r the yellowstone type eruptions if they can happen with no warning.
According to Fresh Bilge the seismic activity at the volcano has really picked up including more eruptions.
we'll see what happens. nobody is really covering it anymore.
Nobody was really covering it at any point.
volcano live was and that other site that was mentioned awhile back was but one went on vacation and the seemed to lose interest in it.
I checked the Chaiten web cam and the eruption is still going on.
Something big is getting ready to happen at Chaiten.
| Quote From Source: |
Although surface manifestations of eruption have continued to decline, the seismicity indicates significant movement of magma, and official concern is high. Another major eruption appears to be imminent, and it could be at least as large as the early May event — or larger still. |
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oh man

Oh boy. I mean if that erupts...Temperatures could go down because of the ashes blocking out the sun. At least for a 500 mile radius.
Remind me again of the eruptive potential. What VEI is this thing capable of? IT's got a big damn caldera IIRC.
According to the Fresh Bilge blog Chaiten has blown.
| Quote From Source: |
| An explosive eruption appears to have taken place at Chaitén this morning. This was the webcam image at 08:59 (local time): a sizeable eruption under way at the caldera. The latest bulletin from Javier De Leonardis in Esquel (issued at 11:20 local time, Spanish text) notes that an overflight yesterday ‘detected partial collapses in the central part of the new dome’ and the removal (through collapse) of some of the material of the dome. With regard to the seismicity of the volcano the bulletin reports that: |
| Click source url to view entire story. |
Not really big enough to do much....yet....
we'll see. could do just about anything at this point.
According to the Fresh Bilge blog the plume height is reaching about 20,000 to 25,000 feet which is the highest level in quite some time.
http://www.seablogger.com/?p=11415
The eruption continues. Here is a web cam image from earlier today.
another volcano rumbled to life in alaska too.
I was reading update #51 on Fresh Bilge and it states the chemistry of the Chaiten eruption has changed. The report states the eruption now has a "lower silica content" which I assume to mean a higher SO2 content.
But the eruption continues and is now 3-1/2 months old and counting.
The Chaiten eruption unfortunately is alive and well.
Here is a webcam image taken around 2pm eastern time.
sweet creepin .... how long has this thing been going on ??
It started May 2nd I believe.