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.
Grand Teton Park Wyoming’s webicorder just capturing it.
It will be interesting to see the wave forms in a little bit.
http://www.quake.utah.edu/helicorder/imw_webi.htm
btw – watch the Darwinist tell us about Hawaii on post 4.
I did not see that thread, but had heard of the movement of city the ten feet.
LOL at your Darwinist displacement video...lol
Interesting to note, the small quakes that have been occurring in California have all but stop since these aftershocks today in Chile.
Note before almost right up until the time of the quake and then after. Quite amazing actually.
http://earthquake.usgs.gov/earthquakes/recenteqsus/Quakes/quakes_all.php
The UTC time of the quake was 14:39 but the P wave did not reach until a few minutes before 15:00 utc.
Literally reduce the tremor action by more than 2/3 thirds.
I don’t think that is a good thing.
Could you guys give a summary/translation of that exchange? pictures maybe? sounding ominous.
2.5m or greater world wide has also been almost completely capped.
http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/quakes_all.php
Again, after the main 8.8 late last month off of Chile, there was no shutoff and in fact perhaps a slight increase in fault areas not usually reported. This to me is very odd.
Getting back to normal.
http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/quakes_all.php
Interesting though is the northern california quakes. Have to pay attention to see if the quaking translates further north and west.
no, there has been a few since your post. California looks good at the moment it is the other regions that that are not slipping that are interesting.
Things are certainly being defined as we speak.
I have been researching the Chilean volcanic activity today. I wonder how these quakes are going to influence if at all the numerous and active cones down there?
Found this earlier...
http://www.newscientist.com/article/dn18587-volcanic-explosions-expected-in-chile-quakes-wake.html
Very likely. we will see. The area has a lot of volcanic activity.
The destruction of America's heartland on a scale that the commies in Obamaland dream of.
If the Caldera ever blows in our life time a dictator is what we would have and it really would be the least of our concern.
Thanks for this fascinating map. My dad was born in Buhl, Idaho, a little west of Twin Falls. He’s been studying the geology of the area for a little while and told me about the hot spot which has been moving and which is now under Yellowstone.
My wife and I are going to visit there this summer and we hope to swing by Yellowstone. Might as well try to visit before it blows up.
The hot spot is more or less stationary. It's the North American tectonic plate that's moving. Note the yellow box and arrow at the top right of the above illustration.
Good point.
I stand corrected. :) It is the plate which is moving, not the hot spot.
So far they have not been able to determine the strength however I don't think it was that large, judging by the webicorder capture.
What is interesting though is that this indeed might be a fore-runner quake. Looking over these graphs, I find the motion of this quake interesting. It was also very shallow.
http://quake.wr.usgs.gov/waveforms/wavesshk/nc71362405.rsec0.html
here is the info still no determination on the strength.
Magnitude ? (uncertain or not yet determined)
Date-Time Friday, March 12, 2010 at 15:34:03 UTC
Friday, March 12, 2010 at 07:34:03 AM at epicenter
Location 40.741°N, 125.425°W
Depth 5 km (3.1 miles) (poorly constrained)
Region OFFSHORE NORTHERN CALIFORNIA
Distances 100 km (62 miles) W (281°) from Ferndale, CA
103 km (64 miles) W (271°) from Humboldt Hill, CA
105 km (65 miles) W (269°) from Bayview, CA
106 km (66 miles) W (267°) from Eureka, CA
417 km (259 miles) NW (307°) from Sacramento, CA
Location Uncertainty horizontal +/- 4.6 km (2.9 miles); depth +/- 15 km (9.3 miles)
Parameters Nph= 22, Dmin=109 km, Rmss=0.18 sec, Gp=274°,
M-type=”Nuttli” surface wave magnitude (mbLg), Version=0
Source California Integrated Seismic Net:
USGS Caltech CGS UCB UCSD UNR
Event ID nc71362405
I compared today’s still to be determined quake to last weeks 4.5. Note today’s though not as intense with the initial shock is much deeper with it rolling. This may be caused by it being a bit more shallow but I don’t think so.
Today’s(as posted above)
http://quake.wr.usgs.gov/waveforms/wavesshk/nc71362405.rsec0.html
Last Week’s 4.5
http://quake.wr.usgs.gov/waveforms/wavesshk/nc71359410.rsec0.html
You can compare the stations(most are on both)and see that to which I speak.
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