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Yellowstone Earthquake Update
keci ^ | (12/31/08) | Christian Hauser

Posted on 12/31/2008 6:55:35 PM PST by Flavius

Nearly 400 earthquakes have rocked Yellowstone National Park since last Friday. The quakes are putting scientists on alert, but they say this type of activity isn't unusual. As long as the quakes continue, the park will keep a very close eye on the region.

Hank Heasler, the Park's Geologist, said "Back in 1985, up to 3 months of earthquakes (occured). (They were) up to magnitudes 4.7. So the past four days have been relatively energetic for the last few years."

Scientists say predicitng earthquakes is still in it's infancy and not reliable. Park officials are not worried that this swarm of quakes could lead to a catastrophic event. However with the lack of accurate forecasting it is possible that these small tremors could be a precursor to a much bigger quake or even a volcanic eruption.

(Excerpt) Read more at keci.com ...


TOPICS: News/Current Events; US: Wyoming
KEYWORDS: callingartbell; catastrophism; earthquakes; usgs; yellowstone
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To: FReepapalooza

Thank you...


81 posted on 12/31/2008 8:43:50 PM PST by travelagent (Ohio)
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To: null and void

wwwstatic.kern.org/filer/GISManilaWebsite/gismaps/kerncountysuperintendentofschools/Bakersfield_Isabella_Dam_Burst1.pdf


82 posted on 12/31/2008 8:48:02 PM PST by bannie
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To: commish

http://www.seis.utah.edu/req2webdir/recenteqs/Maps/Yellowstone.html


83 posted on 12/31/2008 8:50:58 PM PST by Flavius
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To: abigkahuna

http://www.seis.utah.edu/req2webdir/recenteqs/Maps/Yellowstone.html


84 posted on 12/31/2008 8:51:07 PM PST by Flavius
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To: Rushmore Rocks
Well, of course they're interested! They're vulcanologists! It's what they do!

And they have the added benefit of spending the new year plying their trade here in the U.S. as opposed to some third-world sh*thole!

85 posted on 12/31/2008 8:52:11 PM PST by uglybiker (1f u c4n r34d th1s u r34lly n33d 2 g3t l41d)
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To: uncle fenders

Yes it was true but I don’t know if the tilt is still present.


86 posted on 12/31/2008 9:10:13 PM PST by Nuc1 (NUC1 Sub pusher SSN 668 (Liberals Aren't Patriots))
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To: steve86
Where’s the electricity going to come from to run your “new Trane furnace with the super-filter” when the all the electrical substations in the western two thirds of the country are shorted out due to ash?

From the batteries on our Prius! /s

87 posted on 12/31/2008 9:12:25 PM PST by Loud Mime (Things were better when cigarette companies could advertise and lawyers could not....LM)
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To: Flavius; All
Yellowstone Animation.
88 posted on 12/31/2008 9:16:09 PM PST by uglybiker (1f u c4n r34d th1s u r34lly n33d 2 g3t l41d)
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To: unkus

Check yur freepmail


89 posted on 12/31/2008 9:19:45 PM PST by ASOC (This space could be employed, if I could only get a bailout...)
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To: commish
The Lake, Mary Lake, and Mirror Lake Plateau seismographs looks downright ugly tonight.

Almost constant movement for the past 5-6 hours.

I just looked at the Webcorders for the seismographs at Mary Lake and Mirror Lake Plateau, neither of them have been reporting since about 5PM MST today.

Any idea why?

The Yellowstone Lake seismograph is working.

90 posted on 12/31/2008 9:22:07 PM PST by TYVets
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To: unkus

Bug Out Bag and Bug Out Vehicle.


91 posted on 12/31/2008 9:23:12 PM PST by SVTCobra03 (You can never have enough friends, horsepower or ammunition.)
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To: toomuchcoffee

If you look at the map Arkansas is just outside the red zone.


92 posted on 12/31/2008 9:23:46 PM PST by SVTCobra03 (You can never have enough friends, horsepower or ammunition.)
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To: SVTCobra03

Holmes Hill and Soda Butte as well.

Interesting observation.

Wonder if those all feed through a common area?


93 posted on 12/31/2008 9:26:26 PM PST by Cringing Negativism Network ("Free Trade" = Fire Americans. Buy another company then fire more Americans.)
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To: Flavius
Here's something for ya: Form todays Telegraph.uk

Mr Smith, director of the Yellowstone Seismic Network, which operates seismic stations around the park, said the earthquakes have ranged in strength from barely detectable to Saturday's 3.9. A magnitude 4 earthquake is capable of producing moderate damage.

"This is an active volcanic and tectonic area, and these are the kinds of things we have to pay attention to," he said. "We might be seeing something precursory.

http://www.telegraph.co.uk/earth/environment/4032098/Yellowstone-Park-shaken-by-hundreds-of-earthquakes.html

94 posted on 12/31/2008 9:27:33 PM PST by abigkahuna (Step on up folks and see the "Strange Thing" only a thin dollar, babies free)
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To: Battle Axe

I remember as far east as NJ there was a haze in the sky and people had a hard time breathing. I worked in landscaping that summer. Man that sucked.


95 posted on 12/31/2008 9:30:07 PM PST by Drill Thrawl (Who is John Galt?)
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To: kenth

Well, it has erupted in the past in regular volcano eruption form, I mean not Supervolcano type of eruptions.

70,000 years ago.


96 posted on 12/31/2008 9:31:19 PM PST by djf (< Tagline closed until further notice. Awaiting bailout >)
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To: SVTCobra03

Yup.
Get outa town or seriously hunker down time.


97 posted on 12/31/2008 9:33:40 PM PST by djf (< Tagline closed until further notice. Awaiting bailout >)
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To: Flavius
As long as the quakes continue, the park will keep a very close eye on the region.

Yep, the "region" from North Dakota to California...

98 posted on 12/31/2008 9:34:55 PM PST by GOPJ (GM's market value is a third of Bed, Bath and Beyond. Why is GM "too big to fail"? Steyn)
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To: TYVets
Mary Lake and Mirror Lake Plateau, neither of them have been reporting since about 5PM MST today.

Are they in Yellowstone?

99 posted on 12/31/2008 9:36:28 PM PST by GOPJ (GM's market value is a third of Bed, Bath and Beyond. Why is GM "too big to fail"? Steyn)
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To: Flavius

Here’s a link to some information regarding Mt. Saint Helen’s about seismicity AFTER the main May 18, 1980 eruption. By the way, harmonics are the types of motion that cause buildings and bridges to fall apart.

http://vulcan.wr.usgs.gov/Volcanoes/MSH/Seismicity/seismic_studies_1980-1983.html

The following major types of seismograms have been recognized at Mount St. Helens:

1) deep earthquakes and those located away from the volcano, which produce high-frequency signatures and sharp arrivals similar to tectonic earthquakes,

2) shallow earthquakes, located under the dome at depths of less than 3 kilometers, which produce medium-to-low-frequency seismic arrivals,

3) surface events, such as gas and tephra events, rockfalls associated with dome growth, and snow and rock avalanches from the crater walls, which produce complicated signatures with no clear beginning or end, and

4) harmonic tremor, which is a long-lasting, very rhythmic signal whose origin is not well understood but which is often associated with active volcanoes.

Increased seismic activity also preceded the post-May 18 explosive eruptions of 1980. Each of the seismic precursors were of a slightly different character, but two categories were recognized: shallow volcanic earthquake precursors and harmonic tremor precursors. harmonic tremor is a nearly continuous train of vibrations lasting from a few minutes to several hours.

An increase in shallow earthquakes preceded the July and October 1980 eruptions when a lava dome was present in the crater. Harmonic tremor preceded the May 25, June 12, and August 7, 1980, eruptions when the vent was open and no dome existed. Having learned from the seismic buildup preceding the May 25 explosive eruption, seismologists were able to issue warnings of the subsequent explosive events by at least 2 hours.


100 posted on 12/31/2008 9:39:10 PM PST by 21twelve
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