Yellowstone waking up?
- Thread starter Cat_In_Pyjamas
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The possibility of knocking ~40c* off the average temp is a bit more then 'quite cold', the ash cloud will cause world wide starvation making extinction possible.
*science may have changed the numbers a bit since the docu I watched 5 years ago.
Even if it did erupt, which is really unlikely considering it is millions of years between major eruptions, it would only deposit a few cm of ash for a 1000 km or so over mostly unoccupied land. NOT the 10 meters of ash on Dallas like those 2012 conspiracy BS sites claim.
I think its a world (As we know it) over situation when it blows, not jsut a bit of trouble for the USA.
you never know how much they make up on programs about this sort of thing though..
Oh, and the polar bears would probably be walking down our highstreets...
As already mentioned, its rubbish. Just a few normal rumblings.
But how does anyone know its normal rumblings? There is no reference points to go on, if this thing blows every 600,000 years and we have been monitoring it for say 50 we have no idea if its normal or getting ready to pop.
Saying that though americans do tend to sensationalise things, could be this thing blows tomorrow and the worst thing that happens is a few people get a bit of ash on their cars
People better start losing their flabs especially america LoL
I assumed the jocularity in my post was self evident. Apologies.
If this does happen it will indeed get very very cold.
This particular SUPER volcano has erupted twice in the last 1.2 million years as far as I understand it. It was about 600,000 years between it popping. Its been about 650,000 years it last went.
And no, it wouldn't be a few CM of ash. In human record not one single Super Volcano has ever erupted. As a result we have no idea how massive the resulting ash cloud, magma flows, gases are going to be. Since the volcano IS Yellowstone National Park, it's a fair bit bigger than anything we have ever recorded erupting.
Soldato
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Imagine CPU temps if we're dropped into an ice age... as long as it's an ice age with electricity that is... lol
Lake Toba erupted 74000 years ago and wiped out most humans on earth.
http://en.wikipedia.org/wiki/Lake_Toba
http://en.wikipedia.org/wiki/Lake_Toba
Yeah we will be fine, you have to remember the tabloids only print the worst case scenario.
Not even half of NA would be directly affected.
Associate
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When it goes, beyond the immediate destruction and issues of climate change that would follow, surely one of the scenarios is how badly it would affect the corn belt and other major agriculture across the US. Surely that would be a worldwide issue.
.... and no more many things.
Ive never heard it being that much. Off the top of my head id suggest around 5 degrees, which is massive climatically and could quite easily push us into another ice age.
Also the likelyhood of human extinction is virtually nill. Some species would definately die but remember whilst this is a large volcano by human history standards its not *that* big geologically (there have been plenty of eruptions this size and bigger historically, compared, for example, to the Deccan traps its tiny.). Having said that we would go through a very tough patch for a long period.
Soldato
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Siberian Traps erupted for 1 million years and the basalt lava flow was over 1 mile deep, killed off around 95% of life on earth !
Several hundred thousand years, however not the exactly 600ka the BBC harped on about in its Horizon program a few years ago (incidentally they apparently made up the classification/word supervolcano on that program too). The time intervals were more random but their statement, although not necessarily correct wasn't necessarily incorrect.
As for ash there is some information around about predicted depths (using geological evidence of past eruptions) however I don't think your predictions are correct. As far as I remember most/all of continental US would be covered by several cm of ash, those places downwind would get several metres of ash. Dallas probably wouldn't get 10 metres but it may get several foot.
True, no one knows what the specific signs are for a supervolcano eruption but educated guesses can be made (volcanic eruption prediction is actually quite accurate). You would expect a longish period of swarming much stronger than shown there as well as much bigger movement and heat flow as the magma chamber charges up. Have a look at the long valley caldera and its activity in the 80s (along with the political implications).
Soldato
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This whole global warming thing has been 0.5-1degrees in the last 100 years.
40 degree's is pure madness, it has never been that cold.
Indeed