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.

[winoneforthegipper]

I am not sure what was the source, but Utah is an under-reported volcanic zone.

Take a gander at this:

http://bulletin.geoscienceworld.org/cgi/content/abstract/91/8/502

[Steve Van Doorn]

Couple places of interest in Sothern Utah :
http://www.quake.utah.edu/helicorder/icu_webi.htm
This one seems to have a lot of background noise which seems to vary from day to day which is odd…
but even if you disregard the noise look at the area between 10 and 12:00 MST.
http://www.quake.utah.edu/helicorder/msu_webi_3d.htm

[winoneforthegipper]

That MSU was from the 11th?

However there was regional harmonics as the times on the other recorders are exact!

Good catch!

[Steve Van Doorn]

what is going on here? it is like there is something wrong with the meter on this one.
This is the lake area that had a strong swarm last year.
http://www.quake.utah.edu/helicorder/lkwy_webi.htm
If you go back a few days it has some interesting stuff.

[Steve Van Doorn]

sizable activity tonight.

[winoneforthegipper]

Steve, which webicorder were you watching?

[Steve Van Doorn]

http://www.quake.utah.edu/helicorder/ymr_webi_1d.htm

[winoneforthegipper]

I have been following the swarms in California as well as the earthquakes around the country/world. Something huge is brewing, Steve.

Not sure where but I am thinking 8+ or so within the next two weeks and not the western pacific either.

We shall see.

[Steve Van Doorn]

I am looking at Google earth down loaded from USGS but I can not find a webicorder of the Redlands area.

[winoneforthegipper]

This covers most of california and if you look near the top there is a link for long valley as well.

http://quake.usgs.gov/waveforms/helicorder/22221212_thumb.html

Just click the webicorder you want to view. A station map is also up top.

[winoneforthegipper]

Long Vally waking up!

http://quake.wr.usgs.gov/waveforms/helimammoth/MCS_EHZ_NC_—_00_22221212.html

[winoneforthegipper]

Wow!

Looks like we got a new swarm!

http://quake.wr.usgs.gov/waveforms/helimammoth/MSL_EHZ_NC_—_00_20100226.html

[21twelve]

There’s maps of the basalt flows extending across many states. And ash depth - tens of feet thick over America’s major croplands. Plus the sunlight blocked out, etc. Probably not a cause of human extinction - but pretty close.

[winoneforthegipper]

Okay, here is the deal now.

Looking at the events of this morning and yesterday.

I would think the next vulnerable area is the Cascadia Subduction zone or the the Juan De Fuca Plate.

It would make sense in regards to the energy transfer and the building pressure on the Cocos Plate. The Cocos trench could slip but I would think since the Caribbean has been slipping and of course the Nazca plate today, that would preclude the San Andreas area and impact further north.

6.5 t0 7.5 within the next month(I would say two weeks but I want to monitor the Long Valley activity that occurred yesterday).

[Big Horn]

Will it affect this area? We are about 150 miles away from Yellowstone.

[winoneforthegipper]

The north atlantic ridge just had a response to the Chile quake.

I am really keying in on the Cascadia subduction. One thing that bothers me is that, the Juan De Fuca plate is just so fragile compared to the two opposing forces. With the evident increase in continental shift, this area is extremely vulnerable right now, given that the the Atlantic ridge has released it pressure and is continuing to do so the same way with the Euarasian plate.

The pin in the middle is Cocos plate and that is not going to budge much, so mexico I think is fine, for it's getting pressure from all sides.

So that leaves now just the interaction between the north american plate and the pacific plate. In alaska though they receive quite a few quakes per day has been above average all the way down to Valdez.

California is expending much energy from San Fran South.

So that leaves the Pacific Northwest including Canada that is my hotspot.

In all seriousness, I saw that 8.0 coming and I am even more positive about cascadia. Perhaps a 5 percent chance for the Cocos plate and I would think about 55percent chance for the Juan de Fuca plate.

[Trillian]

Self Ping

[1010RD]

Ping me I am traveling to the NW coast. I’d like to at least know. Thanks in advance, FRiend.

[winoneforthegipper]

Roger Wilco!

Hopefully, I am wrong though.

[winoneforthegipper]

An earthquake a few minutes ago near Long Valley as it was recorded by all local webicorders. Interesting stuff.

http://quake.wr.usgs.gov/waveforms/wavesall/nc71355870.rsec0.html