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Mystery Bulge in Oregon Still Growing (100 square miles near Mt St. Hellens)
LiveScience.com ^

Posted on 09/07/2005 10:35:31 AM PDT by LesbianThespianGymnasticMidget

BEND, Ore. (AP) -- A recent survey of a bulge that covers about 100 square miles near the South Sister indicates the area is still growing, suggesting it could be another volcano in the making or a major shift of molten rock under the center of the Cascade Range.

Recent eruptions at nearby Mount St. Helens in Washington state have rekindled interest in the annual Sisters survey and its findings.

Oregon has four of the 18 most active volcanoes in the nation -- Mount Hood, Crater Lake, Newberry and South Sister. A recent U.S. Geological Survey report said monitoring is inadequate at all of them, with only basic monitoring at about half of the active volcanoes.

Image Galleries

The Fury of Volcanoes

Mount St. Helens in 2004

Unlike the volcanoes, the bulge gets an extensive annual survey to track its growth. Spread out across an area nearly as big as the city of Portland, It's centered about three miles southwest of the South Sister, about 25 miles from Bend.

The results of the late August survey won't be ready for weeks, but scientists have reached some conclusions about the bulge from past monitoring.

They say it probably began growing in 1997 and has been rising ever since at a rate of about 1.4 inches a year. It was first observed from space using a relatively new imaging technology known as radar interferometry that can measure changes in the Earth's surface.

The likely cause of the bulge is a pool of magma that, according to Deschutes National Forest geologist Larry Chitwood, is equal in size to a lake 1 mile across and 65 feet deep.

The magma lake is rising 10 feet each year, under tremendous pressure, and it deforms the Earth's surface as it expands, causing the bulge.

Other causes could be anything from the birth of a new volcano -- a fourth Sister in the making -- to a routine and anticlimactic pooling of liquid rock, researchers say.

"The honest and shortest answer is, we don't know,'' said Dan Dzurisin, a USGS geologist.

Dzurisin recently led a three-person leveling crew on a slow walk across the top of the bulge. They were hoping to detect any change in its surface using survey equipment accurate to one-sixteenth of an inch for every mile measured.

Dzurisin's survey data, in concert with space imaging and satellite positioning measurements from two dozen fixed points on the bulge, give scientists an idea of the bulge's depth and size.

Additional information from seismographs and chemical monitoring of area springs reveal movement of the magma underground. A swarm of 350 small earthquakes in March 2004 indicated magma was on the move, but the bulge has been quiet ever since.

Whether the magma will move again or ever reach the surface is a mystery. But if it did, geological history suggests it would result only in small cinder cones that spew ash and lava.

The good news is that such an eruption likely would not seriously affect any population centers, Chitwood said.

Such cones are the most common volcanic features on Earth, he added. Central Oregon has about 600. Basalt flows have occurred in the area of the bulge every 1,000 to 1,500 years for the past 4,000 years, he said. And the area is due for another.

"The bulge is on time,'' Chitwood said. "The bus has arrived.''


TOPICS: Miscellaneous; News/Current Events; US: Oregon
KEYWORDS: artbell; history; mtsthelens; mysterybulge
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1 posted on 09/07/2005 10:35:33 AM PDT by LesbianThespianGymnasticMidget
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Comment #2 Removed by Moderator

To: LesbianThespianGymnasticMidget

Perhaps Bush should declare a state of emergency, send in a few 1000 FEMA responders, send in the military and federalize Washington.

The President is expected to predict catastrophies now isn't he?


3 posted on 09/07/2005 10:37:46 AM PDT by IamConservative (The true character of a man is revealed in what he does when no one is looking.)
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To: LesbianThespianGymnasticMidget
Mystery Bulge in Oregon Still Growing

My apologies if anyone is offended, but there some attractive women in Oregon.

4 posted on 09/07/2005 10:38:53 AM PDT by Ignatz (Proper spelling unites people, improper spelling unties people.)
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To: LesbianThespianGymnasticMidget
... equal in size to a lake 1 mile across and 65 feet deep.
The magma lake is rising 10 feet each year, ...

Wow, it will be at the surface in 7 years!

5 posted on 09/07/2005 10:39:12 AM PDT by glorgau
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To: LesbianThespianGymnasticMidget

Bush is creating volcanos, now, huh?


6 posted on 09/07/2005 10:39:16 AM PDT by atomicpossum (Replies should be as pedantic as possible. I love that so much.)
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To: William Creel
Maybe Oregon is getting arroused.:P

Has Washington recently changed its appearance? Does it smell better?

7 posted on 09/07/2005 10:39:44 AM PDT by msnimje (CNN - Constant Negative Nonsense)
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To: LesbianThespianGymnasticMidget

Okay, what did you do NOW?


8 posted on 09/07/2005 10:39:54 AM PDT by Frank_Discussion (May the wings of Liberty never lose a feather!)
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To: LesbianThespianGymnasticMidget

Karl Rove is creating yet another disaster?


9 posted on 09/07/2005 10:40:13 AM PDT by NRA1995 (I hear the Vonage music playing.....woo-hoo, woo-hoo-hoo....)
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To: LesbianThespianGymnasticMidget

Uh-oh, we better get the Federal Government in here and decide when these people must leave!


10 posted on 09/07/2005 10:40:17 AM PDT by lightislife (E=MC2 when apes evolve to people)
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To: LesbianThespianGymnasticMidget

I question the timing.


11 posted on 09/07/2005 10:40:46 AM PDT by frithguild (If I made one mistake, it was that I was too cooperative and waited too long to go on the offensive.)
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To: atomicpossum

global warming, man.


12 posted on 09/07/2005 10:40:52 AM PDT by lightislife (E=MC2 when apes evolve to people)
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To: TheBigB; Squantos; Petronski

*ahem*


13 posted on 09/07/2005 10:40:57 AM PDT by cyborg (I'm having the best day ever.)
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To: Salvation

for your ping list


14 posted on 09/07/2005 10:41:27 AM PDT by eeman
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To: cyborg

Jeeze, so I'll MOVE already...


15 posted on 09/07/2005 10:41:55 AM PDT by TheBigB (It's funktastic!!)
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To: LesbianThespianGymnasticMidget
Other causes could be anything from the birth of a new volcano -- a fourth Sister in the making

Mother Nature...Bare foot and pregnant.
16 posted on 09/07/2005 10:42:18 AM PDT by TheForceOfOne (The alternative media is our Enigma machine.)
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To: msnimje

I think this bulge is near a group of mountains known as "The Sisters", so maybe that is the answer. I was just there in June and they are pretty sisters.


17 posted on 09/07/2005 10:43:05 AM PDT by MarkeyD (Cindy - The new 'C' word! I really, really loathe liberals.)
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To: LesbianThespianGymnasticMidget

Can they pop it? Like a big zit?


18 posted on 09/07/2005 10:43:09 AM PDT by Pylon (Remember boys, flies spread disease, so keep yours closed.)
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To: LesbianThespianGymnasticMidget

Didn't Al Gore have a "mystery bulge" in that magazine photo?


19 posted on 09/07/2005 10:43:31 AM PDT by Cowboy Bob (Liberalism cannot survive in a free and open society.)
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To: TheBigB
OMG, B!
20 posted on 09/07/2005 10:43:40 AM PDT by Miss Behave (Beloved daughter of Miss Creant, super sister of danged Miss Ology, and proud mother of Miss Hap.)
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To: cyborg

Growing bulge near Helen ?!?!? Oh the mountain.....Somebody open a nudist resort up there ?


21 posted on 09/07/2005 10:43:43 AM PDT by Squantos (Be polite. Be professional. But, have a plan to kill everyone you meet. ©)
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To: TheBigB

LOL


22 posted on 09/07/2005 10:43:57 AM PDT by cyborg (I'm having the best day ever.)
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To: LesbianThespianGymnasticMidget

Do I make you horny? Yeah baby Yea....(austin powers voice)


23 posted on 09/07/2005 10:44:23 AM PDT by JackDanielsOldNo7 (If it wasn't for marriage, I would not have this screenname.)
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To: Pylon
Can they pop it? Like a big zit?

The only problem with that is that the people of Oregon are the mirror.

24 posted on 09/07/2005 10:44:31 AM PDT by Bloody Sam Roberts ("Gentlemen. You can't fight in here. This is the War Room!")
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To: LesbianThespianGymnasticMidget; ecurbh; Ramius; Corin Stormhands
Sure... they're cute when they're babies... Then they grow up...

Fascinating. Thanks for posting.

25 posted on 09/07/2005 10:45:01 AM PDT by HairOfTheDog (Join the Hobbit Hole Troop Support - http://freeper.the-hobbit-hole.net/)
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To: LesbianThespianGymnasticMidget
Interesting!


26 posted on 09/07/2005 10:45:01 AM PDT by Bigh4u2 (Denial is the first requirement to be a liberal)
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To: LesbianThespianGymnasticMidget

Where's Bush????


27 posted on 09/07/2005 10:45:04 AM PDT by Dallas59 (“You love life, while we love death.” - Al-Qaeda / Democratic Party)
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To: MarkeyD

28 posted on 09/07/2005 10:45:08 AM PDT by MarkeyD (Cindy - The new 'C' word! I really, really loathe liberals.)
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To: TheForceOfOne

And moody too.


29 posted on 09/07/2005 10:45:50 AM PDT by Redcitizen (This line intentionally left blank)
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To: LesbianThespianGymnasticMidget
There have been extremely large volcanic eruptions in that area within human history, so this is not anything new.

This huge lava field is only a few miles from the Three Sisters, and IIRC is only a few thousand years old. The South Sister last erupted about 2000 years ago.

30 posted on 09/07/2005 10:47:56 AM PDT by r9etb
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To: msnimje

Naw, a different neighboring state is asting all skanky. It keeps calling out:
I da ho!


31 posted on 09/07/2005 10:48:49 AM PDT by dangus
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To: amom

fyi


32 posted on 09/07/2005 10:48:52 AM PDT by KC Burke (Men of intemperate minds can never be free....)
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To: LesbianThespianGymnasticMidget

Is that a lump in Oregon, or is it just happy to see Idaho.


33 posted on 09/07/2005 10:50:22 AM PDT by dead (I've got my eye out for Mullah Omar.)
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To: cyborg; Miss Behave

34 posted on 09/07/2005 10:50:43 AM PDT by TheBigB (It's funktastic!!)
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To: HairOfTheDog
Off topic, but I had a question I meant to ask you..possibly you know or have a link to any info...

Re the disaster in NO, can search and/or cadaver dogs function there, or does the smell/noxious odors from the toxic water, neutralize their ability to detect scent..or even worse, can it harm their sense of smell?..Many thanks, as always..

35 posted on 09/07/2005 10:51:47 AM PDT by ken5050 (Ann Coulter needs to have children ASAP to pass on her gene pool....any volunteers?)
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To: LesbianThespianGymnasticMidget
Mt. Lassen, Mt. Rainer, Mt. Shasta, and Mammoth Lake would be of more concern that Cratar Lake. There are also the undersea volcanoes off the Oregon coast and when you are finished worrying about that, Indonesia, the Kamchatka peninsula in the Russian Far East, The Aleutian Islands and other sights in Alaska just begin a list of possible locations for catastrophic volcanoes that Bush will be responsible for their eruption by his secret testing of nuclear bombs -- or so I have read in the Muslim press. Anyhow, the end of the world is near (in geologic terms).
36 posted on 09/07/2005 10:52:17 AM PDT by JimSEA
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To: LesbianThespianGymnasticMidget
"The bulge is on time,'' Chitwood said. "The bus has arrived."

The Bulge Bus?

37 posted on 09/07/2005 10:52:34 AM PDT by Miss Behave (Beloved daughter of Miss Creant, super sister of danged Miss Ology, and proud mother of Miss Hap.)
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To: atomicpossum

"Bush is creating volcanos, now, huh?"

No, it's Dick Cheney and his nasty disaster machine.


38 posted on 09/07/2005 10:53:37 AM PDT by AngieGOP (I never met a woman who became a stripper because she played with Barbie dolls as a kid.)
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To: TheBigB
Ranks, B.

You know he invented the bulge?

39 posted on 09/07/2005 10:54:01 AM PDT by Miss Behave (Beloved daughter of Miss Creant, super sister of danged Miss Ology, and proud mother of Miss Hap.)
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To: atomicpossum

Yep ~ it's all Bush's fault! ;)


40 posted on 09/07/2005 10:55:06 AM PDT by blackie (Be Well~Be Armed~Be Safe~Molon Labe!)
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To: TheBigB

He can't beat Dick Cheney.


41 posted on 09/07/2005 10:55:46 AM PDT by cyborg (I'm having the best day ever.)
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To: LesbianThespianGymnasticMidget
here's a satellite photo

Image hosted by TinyPic.com

42 posted on 09/07/2005 10:57:41 AM PDT by Dick Vomer (liberals suck......... but it depends on what your definition of the word "suck" is.)
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To: ken5050

Cadaver dogs can scent bodies that are under water, and search sites are not often clean and free of other smells. It's just something they'd learn to deal with. Dogs are susceptible to many of the same bacteria we are. I don't know if they are using them now or not. I haven't seen any articles on search dogs in this disaster.


43 posted on 09/07/2005 10:58:13 AM PDT by HairOfTheDog (Join the Hobbit Hole Troop Support - http://freeper.the-hobbit-hole.net/)
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To: lightislife

No, it's the weather control devices! (wingnut thinking) /sarcsm


44 posted on 09/07/2005 10:58:24 AM PDT by Clock King ("How will it end?" - Emperor; "In Fire." - Kosh)
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To: LesbianThespianGymnasticMidget

They don't call Oregon "the Big O" for nuthin'.


45 posted on 09/07/2005 11:00:06 AM PDT by George Oh Well
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To: Dick Vomer

OMG, I think I tinked.


46 posted on 09/07/2005 11:00:30 AM PDT by Miss Behave (Beloved daughter of Miss Creant, super sister of danged Miss Ology, and proud mother of Miss Hap.)
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To: LesbianThespianGymnasticMidget

Your title is wrong; this isn't near Mt. St. Helens, (Which is in Washington State) it's near the Three Sisters in Oregon, a good distance to the South.


47 posted on 09/07/2005 11:02:07 AM PDT by Strategerist
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To: Strategerist
Recent eruptions at nearby Mount St. Helens in Washington state

From the article.
48 posted on 09/07/2005 11:04:51 AM PDT by LesbianThespianGymnasticMidget (If con is the opposite of pro, is Congress the opposite of progress?)
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To: LesbianThespianGymnasticMidget

ping


49 posted on 09/07/2005 11:21:12 AM PDT by trailboss800
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To: LesbianThespianGymnasticMidget

The area is 150 miles from Mt. St. Helens, on the opposite side of the Cascade Range. Is that near? Well, in terms of probable simultaneous activity, no.


50 posted on 09/07/2005 11:27:27 AM PDT by mdefranc
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