Yellowstone might go on first stage alert soon.

USGS ^ | 2/10/2010 | Myself

[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.

[Steve Van Doorn]

yes I have to look that up ...

[Steve Van Doorn]

Yellow stones Swarm is still going:
http://www.quake.utah.edu/helicorder/ymr_webi_1d.htm

[winoneforthegipper]

Atlantic ridge is extremely active this weekend....

Highly concerned!

[Quix]

Where on the ridge?

[cmsgop]

My dogs have been freaking out for the last 2 days,coming out of their skin so to speak.

[winoneforthegipper]

from just south of Norway to just south of africa.

Concentrations near the PR and greenland.

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/quakes_all.php

[winoneforthegipper]

That is one phenomenon I believe in!

What part of these great states do you live?

[Steve Van Doorn]

cmsgop lives in Washington!
cmsgop i do hope you don't live right on the coast unless your on a large cliff side. We have been expecting a big one in that area anytime. if you do set up a bug out bag.

I do not see all that much action on the Atlantic coast.
there is a small swarm of quakes far north of Iceland on the ridge but that is about it that I see.

[winoneforthegipper]

http://earthquake.usgs.gov/earthquakes/recenteqsww/Maps/10/345_-35.php

http://earthquake.usgs.gov/earthquakes/recenteqsww/Maps/10/295_15.php

http://earthquake.usgs.gov/earthquakes/recenteqsww/Maps/10/0_75.php

The Atlantic ridge is quite active...Most active it has been in two years from top to bottom.

cmsgop, wow yeah...you are in least my top three trouble spots.....Godspeed FRiend!

[winoneforthegipper]

forgot this one...

http://earthquake.usgs.gov/earthquakes/recenteqsww/Maps/10/5_35.php

[Steve Van Doorn]

Of those there is only one actually on the Atlantic ridge. The others are generally in the Atlantic area.

How do you feel these are linked? I am not getting the connection.
thanks

[winoneforthegipper]

The Atlantic ridge, whether it is the “southern” “mid” or “north” stretches from just north of the antartic till past the north pole connecting to the pacific plate.

Their is a detour or fracture just to the north of the virgin islands stretching to the north of Puerto Rico.

The north african quakes in my estimation are clearly a result of the action along the mid atlantic ridge.

[winoneforthegipper]

This will give you perspective.

http://whatonearth.olehnielsen.dk/tectonics/ridges.gif

[winoneforthegipper]

Volcano Blog is on to this but here are the webicorders for the small swarm at Mt Hood that started up!

http://www.pnsn.org/WEBICORDER/VOLC/welcome.html

[Steve Van Doorn]

Note the depths of the quakes at Yellowstones YMR:
http://www.seis.utah.edu/req2webdir/recenteqs/Maps/111-44.html

There is at the very least going to be some gas releases at Yellowstone.

[Disambiguator]

Is this just hopeful thinking or is there a scientific basses for the answer.

A nuclear physicist in the rhythm section?

[upcountryhorseman]

I don’t think there is an opening, just a swollen area.

[SatinDoll]

Hi Frantzie! You asked about the size of the volcano.

Well, Yellowstone is a super volcano, and the size of the caldera’s perimeter is approximately the size of the whole of Yellowstone Park. Yes, it is huge and it is dangerous.

See post #39 for a really good idea of what Yellowstone is volcanically: it is much like Hawaii, in that it is a ‘hot spot’ in the earth’s mantle with a tectonic plate sliding over it through geologic time. The geology tells the story of past eruptions.

[PzLdr]

Wonder if it will interfere with Obozo’s golf game?

[ETL]

Map of the Yellowstone Hot Spot Trail. Reveals the movement of the North American tectonic plate over the last approximate 16 million years.