Posted on 02/02/2010 7:06:54 PM PST by Steve Van Doorn
Since January 17, 2010 Yellowstone has had the second largest swarm ever recorded. The swarms have been steady at about 10 miles in depth and they have subsided a few days ago.
In the past two days the depth has raised up to around 7 miles and in the past couple hours quakes vastly increased.
http://www.quake.utah.edu/helicorder/ymr_webi.htm
http://www.seis.utah.edu/req2webdir/recenteqs/Maps/111-44.html
Remember this doesn’t mean we will see an eruption and it most likely means a normal volcano. It is very unlikely we will see a caldera eruption.
But these changes are significant and cannot be over looked
Some history:
Since the most recent giant caldera-forming eruption, 640,000 years ago, approximately 80 relatively nonexplosive eruptions have occurred. Of these eruptions, at least 27 were rhyolite lava flows in the caldera, 13 were rhyolite lava flows outside the caldera and 40 were basalt vents outside the caldera. Some of the eruptions were approximately the size of the devastating 1991 Pinatubo eruption in the Philippines, and several were much larger. The most recent volcanic eruption at Yellowstone, a lava flow on the Pitchstone Plateau, occurred 70,000 years ago.
Yellowstone has several stages of eruption, from localized hydrothermal explosions which are fairly common to a supervolcanic eruption which would be a worldwide catastrophe within a few years of the eruption.
It is best to go directly to the USGS volcano watch website for the expert opinion. Yellowstone is currently at the normal green stage right now.
thx.
Have you ever found a beautiful rock and taken it home, only to find when you get home and look at that rock - it’s died!
In my experience sea shells hold their charm away from the beach though rocks smell much better.
Interesting.
Thanks.
AS though the rest of the world was totally boring right now.
LOL.
Wheee.
Steve , thank you, this gives me the motivation to get that emergency kit, I mean it , thank you....
“No doubt...it will indeed be the end of this nation.”
Oh are we talking about Obama again? (gallows humor)
I know that this is a very serious topic; and am learning a lot from the “geo-knowledgable” FReepers...but your post CB was beautiful. Your descriptions grand and full of feeling...thank you for posting it!!!
(Your Beck FRiend) PAMom
It is very likely this is nothing to be worried about. Magma moving deep inside the earth, and perhaps a few related steam events. Were the big one to happen there would be lots of warming. Ground would lift tens perhaps a hundred feet long before a super eruption, numerous lessor vents would erupt days/hours before the big one. Also the big one would be immediately preceded by a large earth quake. This is just another interesting day at Yellowstone.
Thanks, and of course I did mis-speak...of course the plates have moved away from the hotspot, not viseversa...lol!
No one knows, but every second brings us closer to the Big Blow. If I was west of the Mississippi, I'd bug out NOW!
I understand...
:}
I don’t think throwing Al Gore in a volcano expecting a beautiful young maiden
would help anyone in the least . . .
on the other hand . . . we wouldn’t have to listen to him any more.
/sar
Well here is my question again and a freeper posted - the width:
“about 34 miles by 45 miles, according to WikiPedia.”
Big Volcanos like the scary ba*tard that is baby Krakatoa building up in the S Pacfic usually build up into a mountain overtime. The beast in the S Paficif grew from the seabed growing and growing.
At the top or the opening (foget the technical term again - cone??) It fairly narrow. The pressure builds and eventually blows.
Now a caldera is sunken in and really wide. Do scientist have any way of know if it was a caldera when it blew??
If it is 34 by 45 miles across can the pressure be relieved so it may never blow with the same force? Any geologists here?
So Sorry Mom MD, here it is:
Here is a video as well that gives a great run through.
http://www.youtube.com/watch?v=Ej9jdJ-913Y&feature=SeriesPlayList&p=C455114941F2C645
>Yellowstone is currently at the normal green stage right now.
Dangit! I wanted at least a little scare, can’t they upgrade it to yellow?
;)
I can’t find the map right now but it would be devastating to the western US all the way east to about the center of Indiana with depths of ash from many feet down to about 5”. The further east you’d go the less ash cover you would see. The biggest ptoblem is the cloud that would block out the sun for probably a year+.
Me too, but just in fun not for real.
can't hurt to try.
My mom & dad lived in Florida for part of the GDI, when my older brother was little. There are pictures, I will have you know, of her in a two-piece sarong, complete with long, dark wavy curls down one side, holding his hand and walking on the beach. My dad worked a construction job, but hey, he had work. Even then.
She took up jewelry making out of shells, so the years that we’d go down—years later, during their snow bird period, that we would go shelling and go to the Shell Factory, which has more shells than King Fahd has wives.
She taught all of us kids how to get good shells when out shelling and make stuff out of them. All kinds of stuff. She had learned how to sell what she’d made.
One time, we were at Captiva, where Sanibel and Captiva meet, right after a big storm. There were the most beautiful, nearly perfect shells piled high on the beach after that storm. My, we had things and shells and sacks and pockets and hats and whatall stuffed with shells.
So, we went home, boiled ‘em up, cleaned ‘em out (and listened for the salty, grey-blue Gulf surf you could hear from some of them), soaked ‘em in 1:1 lighter fluid & baby oil, and made up Florida lamps & soap dishes and living room doo dads and wind chimes and jewelry. It was an event. Still have some of those shells. We all do.
But the best is still that early picture of her in her Yvonne DeCarlo prime on the beach in a two-piece sarong and long waves and waves of curls—not to mention her legs that really were famous in 3 counties—smiling coyly at my Errol Flynn lookalike dad back in the camera’s eye and snapping the black and white. He, no doubt got an idea about who the next name in our family ought to be from that now wrinkled and much handled picture, my dad, who was quite dashing in his heyday.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.
