New Information About Yellowstone
Park
RESTLESS VOLCANOES STATUS REPORT
UPDATE: 16 April 2004 ****************************************************
YELLOWSTONE - (44o26'00"S 110o40'00"W),
2,805 m, UNITED STATES (Wyoming)
As of the 14th of April, the Yellowstone Volcano Observatory (YVO), reported that during
March 2004, 72 earthquakes were located in the Yellowstone region. The largest shock to occur during this period was a magnitude
1.9 earthquake on March 28 at 9:39 PM MST, located about 1.8 miles north northwest of Fishing Bridge, Wyoming. Earthquake
activity in the Yellowstone region is at background levels.
Seismic images of the lake sediments in this area show that they were tilted, hinting that
the region may have been pushed up or "inflated." The amount of inflation would be much less than the 100-foot height of the
feature, but is currently unknown. The images appear to indicate that the uplift is associated with accumulation of gas from
Yellowstone's hydrothermal (hot water) system. Similar inferred gas accumulations were also noted elsewhere within the lake.
Future research will assess the amount of uplift and its origin, whether by gas buildup or other potential mechanisms.
At present, there is no evidence of recent growth of any features beneath the lake, and
there is no indication that residents or visitors are in any danger. Temperature measurements from hydrothermal vents taken
this year indicate no change in temperatures compared to those taken last year. The feature may have been there for decades
or much longer.
On March 10, 2003, Yellowstone Park biologists discovered 5 dead bison along the Gibbon
River near Norris geyser basin. The bison appear to have died about one week earlier due to inhalation of toxic geothermal
gases. The gases, most probably CO2 and/or H2S, likely accumulated in a low area due to very cold windless
conditions. Though such events are rare, over the Park's 132-year history similar animal kills have occurred several times.
Visitors can safely view Yellowstone's thermal areas by staying on designated trails and boardwalks
The colour code at Yellowstone is currently at GREEN
. ERUPTION Pro 10.5 is not capable of forecasting a supervolcano to erupt.
**************************************
As the concerns about an explosion of the Yellowstone
caldera mount, some ideas sweeping around the Internet are a bit wide of the mark.
The latest: What if recent seismic
events were deliberate underground detonations designed to drain off the magma bubble under Lake Yellowstone?
Not likely.
From this reporter's understanding of the thermodynamics of all this, that would be a useless approach. It's not the pressure
of magma which produces a caldera explosion, it's actually a sharp reduction of pressure which causes the problem.
The
reduced pressures allows superheated steam to emerge from the magma liquid and that steam triggers an explosive expansion.
hear this mp3 special report:
http://mysite.verizon.net/res80iwt/yellowstone.htm
This
just in from Cal Steinberger. The article below is from a local-
to-Yellowstone media source and more than likely will
not be put
out in the major media. Most of the note below from Cal is almost
word for word what James McCanney said
may happen at Yellowstone on
one of his radio shows within the last few weeks. Note again that
quakes at Yellowstone
are being censored by the USGS. Another 5.3
occurred two days ago. If any quake happens much larger than this
then the
scenario discussed below by Jim McC and echoed by Cal below
would be much more likely at a moments notice. It's unsure
whether
just a few more moderate quakes could trigger the event.
Mark H
This is something new happening at Yellowstone.
Mercury is very
deadly. Thanks Dave for bringing it to us. Folks: If any of you
have loved ones living within a radius
of 600 miles of the
Yellowstone Park "Super Volcano" area, you might want to continue to
alert them about the danger
of a potential eruption there. Now
might be a good time for them to think about at least having their
emergency contingency
plans in place, so that they can move very
quickly on a moments notice. If a large earthquake should occur
that would
fracture the thin crust overlaying the magma that is
lying beneath the Huge 400 square mile (i.e. area) lake there, the
water
that will be thrown down to the magma will create a
tremendous explosion that has never been seen by modern man!
feb, 7
A 5.3 earthquake has just hit near Yellowstone Park!
The USGS must have NEVER expected the ESMC http://www.emsc-csem.org/cgi-bin/CsemAdmin/ALERT_datafile.sh?S2235&NEIA to pick up this quake and list it on their site!
What else is the USGS not telling us about Yellowstone? 2004/02/06 19:03:33.3 43.5N 105.1W 264 mb5.3 A NEIA WYOMING
www.trib.com/AP/wire_detail.php?wire_num=80182
http://www.iol.co.za/index.php?click_id=3&art_id=qw1073468702645B222&set_id=1
Minor earthquake rattles sleepy
Wyoming
January 07 2004 at 11:45AM
Washington - An earthquake with
a magnitude of 4.7 rattled Jackson, Wyoming, early on Wednesday, according to a report from the United States Geological Survey
(USGS).
The tremor, which occurred at 12.51am
local time was centred 32km north-east of Jackson in the Bridger-Teton National Forest, said Butch Kinerney, a spokesperson
for the USGS.
"It was felt in Jackson," said Kinerney.
"A 4.7 is enough to wake people up, but we don't expect any damage. There may be some dishes rattling, that kind of stuff,
but it's not enough to do any structural damage."
"It's a resort area, mostly used for skiing,"
he said, adding that seismic activity was not unusual in the area of Yellowstone National Park, also in Wyoming.
~~~~~~~~~~~~~~~~~~~~~~~
http://tv.ksl.com/index.php?nid=5&sid=68275
Utah Dept. of Public Safety Earthquake
Info.
WY Earthquake Serves as Wake Up
Call
Jan. 7, 2004
Kimberly Houk Reporting
An earthquake shook northwestern Wyoming
early this morning. It registered a 5 on the Richter scale. An earthquake of that magnitude can cause damage, but this one,
19 miles northeast of Jackson Hole, has had its greatest effect as a wake-up call.
Maralin Hoff has been nicknamed the "Earthquake
Lady" because it's her job to make sure Utahns are prepared. And the Wyoming shaker gives her another reason to spread the
word. She says everyone can start with an Emergency Kit.
Maralin Hoff, Dept. of Public Safety:
“Children should have an ER backpack by their bedsides. At your office, your vehicle, home, everywhere you should have
a kit. Put a band-aid in your purse. "
Hoff says most things you can find around
your home, like a flashlight, clothing, and first aid items. The key is making sure everything is in one place.
Hoff: “It's just wise to have extra
food stored at home, water especially. You never know when or if our water system will ever be contaminated."
Hoff says now is the time to get prepared.
Wyoming's early morning earthquake was one of 10 earthquakes to shake both Utah and Wyoming since Christmas day. Four of the
ten earthquakes were in central Utah near Nephi.
Bob Smith has studied earthquakes for
decades. He teaches at the University of Utah and is familiar with the area in Wyoming where the earthquake hit.
Bob Smith, U of U Professor: “This
earthquake was felt over an area at least 200 miles long. It was felt from southern Montana clear down to Pocatello, Idaho."
Smith keeps a close eye on the seismic
activity of the Wasatch Front. He says although the Wyoming earthquake has no affect on Utah, the Wasatch Front's fault line
looks a lot like the Teton Fault line. Another reason why an earthquake 200 miles away hit close to home for people worried
about emergency preparation.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
http://www.casperstartribune.net/articles/2004/01/08/news/wyoming/a7116aab3559e55587256e150004f9ea.txt>
Earthquakes rattle Jackson
By NADIA WHITE
Star-Tribune staff writer
Four earthquakes shook Jackson Hole
in the early morning hours Wednesday.
The first temblor at 12:57 a.m.
measured 5.0 on the Richter scale, the largest recorded in Teton County history, according to the Wyoming State Geological
Society. It was followed by four aftershocks, all centered about 7 miles east of Kelly in the Gros Ventre Range.
Seth Clearman, resident manager
of the Red Rock Ranch, near the epicenter of the quake, said the flurry of quakes lasted until about 6:30 a.m.
"The first thing I thought was,
'Where's my kid and cover his head,'" Clearman said. "Books fell off the bookshelves, picture frames came off the wall. Was
I scared? No. I was nervous."
He said the quake was bigger than
usual and lasted longer, but he knew what it was.
The University of Utah Seismograph
Stations and the U.S. Geological Survey's National Earthquake Information Center reported the quake was centered east of Kelly
and about 3 miles southeast of Lower Slide Lake in the Gros Ventre River valley.
Wednesday's earthquakes come after
smaller temblors were reported in Jackson on Dec. 30 and near Newcastle on Sunday.
Wednesday's earthquake in Teton
County did not occur on the Teton fault, which is capable of generating a magnitude 7.5 earthquake, according to the USGS.
Jackson resident Tat Maxwell said
the first earthquake lasted five or six seconds and started her dogs barking. Aftershocks, she said, awoke her younger children.
"It feels like a really big truck
just rambled by on the road next to you, although there are no roads next to you. It's weird. It's eerie," she said.
USGS reported a magnitude 3.7 earthquake
occurred at 1:27 a.m., a magnitude 4.1 earthquake occurred at 1:44 a.m., and a magnitude 4.0 earthquake occurred at 2:23 a.m.
Wednesday.
Earthquakes are common in Teton
County, though much less common in northeastern Wyoming.
Wednesday's earthquakes were not
noticeable in Yellowstone National Park, 70 miles north of the epicenter, although more sensitive seismic records have not
yet been consulted, park spokeswoman Cheryl Matthews said.
Grand Teton National Park spokeswoman
Jackie Skaggs said many park employees felt the quake, but that no damage to park buildings or property, or of avalanches
triggered by the quake, had been reported.
Bob Smith, a professor of geophysics
at the University of Utah, said people reported feeling Wednesday's quake as far from the epicenter as Cody, Pocatello, Idaho,
and southwestern Wyoming. He said earthquakes in the Gros Ventre Range are not uncommon.
As recently as Dec. 30, an earthquake
with a magnitude 3.5 occurred in the same area at 11:16 p.m.
In 1925, small earthquakes were
reported to have occurred in the same general area as the Wednesday morning quakes and are thought to have played a role in
the huge landslide that created Landslide Lake and redirected the Gros Ventre River, according to the Wyoming State Geological
Society.
Smith, an expert on seismic activity
in Yellowstone, said it is unclear how activity in one area might affect seismic activity on other nearby faults. But he said
it does not appear that increased heat and geothermal activity in the Norris Basin this summer is related to tectonic or magma
activity, but may instead be due to the drought and dropping water tables.
Newcastle gets a quake, too
On Sunday, residents near Newcastle
reported an earthquake that registered 2.1 on the Richter scale just before 8 p.m. Earthquakes are much more unusual in northeastern
Wyoming than in northwestern Wyoming, according to state records.
Sharon Fridley said she felt the
quake and her husband heard it on their ranch, known locally as the Old Snedecker Place, which has a fenceline on the Wyoming
stateline.
"We were just sitting in the living
room and I felt the floor start vibrating and rumbling; all the windows started rattling. It lasted for several seconds, and
I looked at my husband and we just said, 'What was that?'"
The Fridleys are official weather
reporters for western Custer County in South Dakota, so Sharon Fridley called the weather service to report that she thought
there'd been an earthquake.
She said the weather service later
confirmed the magnitude of the quake and said it was centered 7 miles west of Jewel Cave, near the Wyoming state line.
"We've experienced here on this
ranch just about everything now," Sharon Fridley said. "Fires last summer, tornadoes, floods and now an earthquake."
Residents living 15 miles south
and west of Newcastle felt the quake as well.
Star-Tribune correspondent Whitney
Royster contributed to this report.
~~~~~~~~~~~~~~~~~~~~~~~~~~
http://www.reuters.com/newsArticle.jhtml?type=domesticNews&storyID=4085057
http://www.newsday.com/news/nationworld/nation/wire/sns-ap-brf-wyoming-quake,0,6664522.story?coll=sns-ap-nation-headlines
http://www.kltv.com/Global/story.asp?S=1590259
http://www.azcentral.com/news/articles/0107WyomingQuake07-ON.html
http://www.ajc.com/news/content/news/ap/ap_story.html/National/AP.V6791.AP-BRF-Wyoming-Qua.html
http://www.guardian.co.uk/uslatest/story/0,1282,-3596013,00.html
Subj: [earthchanges] s Yellowstone Worse
than they say?
Date: 1/15/2004 6:36:14 PM Pacific
Standard Time .
Yellowstone Worse Than They Say?
14-Jan-2004
The U.S. Geological Service and the media
have been super- conservative with their warnings about the Yellowstone supervolcano. But evidence is accumulating that the
park is in big trouble because the vast volcanic region beneath its surface could be on a fast track to eruption. One source
says, "The American people are not being told that the explosion of this 'super volcano' could happen at any moment. When
Yellowstone does blow, some geologists predict that every living thing within six hundred miles is likely to die." The Idaho
Observer reports that recent eruptions, 200 degree ground temperatures, bulging magma and 84 degree water temperatures are
worrying scientists who are studying the area. Yellowstone National Park is on top of one of the largest "super volcanoes"
in the world, with a regular eruption cycle of 600,000 years. The last eruption was 640,000 years ago-meaning the next one
is long overdue, and it could be 2,500 times the size of the 1980 Mount St. Helens eruption.
Rangers have closed part of the park because
of land deformation and high ground temperatures. Visitors are complaining about the stench of sulfur. Everything in the area
of the bulge is dying, including trees, flowers, grass and shrubs. Even animals are leaving. Dead fish are floating in Yellowstone
Lake.
The Observer reports that "The irony of
all this is the silence by the news media and our government. Very little information is available from Yellowstone personnel
or publications. What mainstream news stories do appear underscore the likelihood of a massive volcanic eruption."
So when's Yellowstone going to blow? Do
the numbers.