4holer
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Rumblings At Yellowstone?

Wed Dec 31, 2008 9:05 pm

Surprised that a geek like me had not seen this sooner...
I see that there is an ongoing swarm of earthquakes going on at Yellowstone Park, right above the magma chamber.
http://www.seis.utah.edu/req2webdir/recenteqs/Maps/Yellowstone.html

The press release shows it has definitely raised eyebrows.
http://www.seis.utah.edu/EQCENTER/PRESS/yell_press.htm

But what they have not yet mentioned is that the seismographs are showing what certainly looks to me like harmonic tremor, noisy readings usually found with moving magma and very often seen before eruptions.
http://www.quake.utah.edu/helicorder/heli/yellowstone/index.html

Not saying it would be "The Big One", but if I had to guess I'd say that something is about to happen there.

Anyone else been following this?
Ghosts appear and fade away.....................
 
Flighty
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RE: Rumblings At Yellowstone?

Wed Dec 31, 2008 9:41 pm

There is almost nothing scarier than going to Yellowstone and contemplating what is truly going on down underground.
 
IgneousRocks
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RE: Rumblings At Yellowstone?

Wed Dec 31, 2008 9:44 pm

I just finished reading Bill Bryson's "A Short History of Nearly Everything" and he writes a bit about Yellowstone and its potential for an eruption of epic proportions - one that could wipe out living creatures for 100s miles in every direction.

Read here...
http://scootergrrl.blogspot.com/2008...owstone-national-park-largest.html

Yellowstone, it turns out, is a supervolcano. It sits on top of an enormous hot spot, a reservoir of molten rock that begins at least 200 kilometres down in the Earth and rises to near the surface, forming what is known as a superplume.
I can take your igneous rocks or leave 'em. I relate primarily to micas, quartz, feldspar.
 
4holer
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RE: Rumblings At Yellowstone?

Thu Jan 01, 2009 12:01 am

Scary...

http://www.quake.utah.edu/helicorder/heli/yellowstone/Uuss.YML_EHZ_WY.2008123100.gif
Ghosts appear and fade away.....................
 
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ER757
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RE: Rumblings At Yellowstone?

Thu Jan 01, 2009 12:15 am



Quoting Flighty (Reply 1):
There is almost nothing scarier than going to Yellowstone and contemplating what is truly going on down underground.

That's true - but the show above ground is so fascinating that it generally takes my mind off the subterranean plumbing.

Quoting 4holer (Thread starter):
Not saying it would be "The Big One", but if I had to guess I'd say that something is about to happen there.

Stuff happens there every day, but I know what you're saying. I am not real familiar with the type of volcano that Yellowstone is. Are smaller eruptions possible, or does it always go ka-boom in a BIG way?
 
powercube
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RE: Rumblings At Yellowstone?

Thu Jan 01, 2009 2:23 am

Quoting ER757 (Reply 4):
Stuff happens there every day, but I know what you're saying. I am not real familiar with the type of volcano that Yellowstone is. Are smaller eruptions possible, or does it always go ka-boom in a BIG way?

I'm not a geologist, but since there's so much sensationalism out there I thought I should just say a few things. Yellowstone does not erupt only as a caldera volcano- 70000 years ago it erupted in a standard plinian way. Also, quake swarms are not uncommon in the area, in 1985 there was a swarm of more than 1000 quakes towards the Northwestern edge of the caldera and nothing bad seemed to come of it. I would imagine given that the cause the YVO gave at the time was magma moving around there was a fairly constant harmonic tremor going on as well. I'm not sure though, I'm not even sure if what we see here are harmonic tremors. A lot of these quakes are occuring at depths of under 1km, the magma chamber is five miles down. It's also important to note that the seisomography instruments in place are extremely sensitive and there have been very severe winds in the area since the start of this swarm. This does have the potential to create an insane amount of noise on the seismograph and this can confuse things. Another thing I never really understand is where the 600,000 year average comes from, a volcano that never once erupted without more than 700,000 years in between seems like a very hard case to make that we are overdue. If this was the very distant future and more of Yellowstone was bulging more than it is, then I'd be more than a trifle concerned.

[Edited 2008-12-31 18:24:20]
 
4holer
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RE: Rumblings At Yellowstone?

Sat Jan 03, 2009 6:54 am

Maybe dropping off with the (apparent) tremor. (But still nice to get some geological excitement here in the lower 48.)
http://www.quake.utah.edu/helicorder/heli/yellowstone/Uuss.YML_EHZ_WY.2009010200.gif
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silverfox
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RE: Rumblings At Yellowstone?

Wed Jan 07, 2009 2:08 pm

Global Warming!!

Thats why i am freezing my nuts off in the UK

Most of it is a lot of bollocks and a con for governments to tax us even more

I mean gormless Broon taxes air passengers for the carbon footprint
OK but why do 1st class pay more than economy?

They each 'use' the same amount of fuel, and why not tax the crew as well?

Politicians uselss bunch of twats all of them

Have a good new Year!!
Oh and an anagram for George Bush is


Bugger Shoe
 
dxing
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RE: Rumblings At Yellowstone?

Wed Jan 07, 2009 2:28 pm



Quoting 4holer (Reply 3):



Quoting 4holer (Reply 6):

Holy richter scale Batman! I see myself in the matrix!!!

Yes it must be a slow news day.
Warm winds blowing, heating blue skies, a road that goes forever, I'm going to Texas!
 
slider
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RE: Rumblings At Yellowstone?

Wed Jan 07, 2009 9:36 pm

So this is essentially a global doomsday scenario. Ah, lovely. Scary stuff, actually.
 
Lumberton
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RE: Rumblings At Yellowstone?

Wed Jan 07, 2009 11:15 pm



Quoting Slider (Reply 9):
So this is essentially a global doomsday scenario. Ah, lovely. Scary stuff, actually.

A super volcano eruption? From what I read and see on the History Channel, definitely. It would pump enough Sulfur Dioxide into the atmosphere to chill the entire planet down a tad for a long, long time.
"When all is said and done, more will be said than done".
 
slider
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RE: Rumblings At Yellowstone?

Thu Jan 08, 2009 3:39 am



Quoting Lumberton (Reply 10):
A super volcano eruption? From what I read and see on the History Channel, definitely. It would pump enough Sulfur Dioxide into the atmosphere to chill the entire planet down a tad for a long, long time.

Not to mention ash that would cover crops, the food belt of the USA that feeds, oh, a lot of the world.

I don't wish to alarm anyone, but bad made-for-TV movies notwithstanding, it's quite something to get your brain around. Scary.
 
baroque
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RE: Rumblings At Yellowstone?

Thu Jan 08, 2009 6:38 am



Quoting Silverfox (Reply 7):
Oh and an anagram for George Bush is


Bugger Shoe

 rotfl   rotfl  And to think if I did not have an unhealthy interest in matters geological, I would have missed that gem.

Just as well it is well instrumented (Yellowstone, not the shoes) because extrapolating a few decades records to an over half a million year event is just a bit tricky. Even the much better understood Mt St Helens was tricky to predict until very near the major eruption.

Merapi too is fairly well understood and erupts quite frequently but its last few rumbles have been nearly as much of a mystery as ever. There are plenty of other possible major eruptions. Bandung is about 20 to 30 kms from a volcano that has many features in common with Krakatoa except for the marine setting for Krakatoa!
 
F9Animal
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RE: Rumblings At Yellowstone?

Thu Jan 08, 2009 10:17 am



Quoting Slider (Reply 9):
So this is essentially a global doomsday scenario. Ah, lovely. Scary stuff, actually.

Nope. I think the end of the world is rumored now to be in 2012?
I Am A Different Animal!!
 
cptkrell
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RE: Rumblings At Yellowstone?

Thu Jan 08, 2009 2:14 pm

F9Animal wrote: "I think the end of the world is rumored now to be in 2012?"

January 21, 2012 actually. That is, acording to the Mayans, Chinese, Nostradamus, native American Indians and the History Channel special that I watched last night  Smile regrads...jack
all best; jack
 
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nighthawk
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RE: Rumblings At Yellowstone?

Thu Jan 08, 2009 2:40 pm



Quoting Cptkrell (Reply 14):
January 21, 2012 actually. That is, acording to the Mayans, Chinese, Nostradamus, native American Indians and the History Channel special that I watched last night Smile regrads...jack

21st December 2012 actually, according to the Mayans.
 
cptkrell
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RE: Rumblings At Yellowstone?

Thu Jan 08, 2009 2:43 pm

My bad, Nighthawk. Yes, DECEMBER not Jan as I wrote.

regards...jack
all best; jack

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