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Thread: Mount Redoubt Volcano

  1. #91
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    Quote Originally Posted by slang View Post
    Yes (plays sound on load!). I remember it was a KLM Boeing 747. Easy find.
    Thanks Slang, also PetersCreek and flynjack1! I didn't mean to ignore your responses but had a little unexpected excitement with my Dad landing in the hospital on Friday. (He's fine, pretty much a false alarm.)

    KLM was my recollection but I wasn't sure. I vaguely recall that in addition to the engines, they had to replace all the electronics due to ash in their cooling air as well as all the A/C ducting.

    I think there was another similar incident in Indonesia around the same time, as well. Does volcanic ash show on the weather radar?
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  2. #92
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    Quote Originally Posted by Trebuchet View Post
    Thanks Slang, also PetersCreek and flynjack1! I didn't mean to ignore your responses but had a little unexpected excitement with my Dad landing in the hospital on Friday. (He's fine, pretty much a false alarm.)

    KLM was my recollection but I wasn't sure. I vaguely recall that in addition to the engines, they had to replace all the electronics due to ash in their cooling air as well as all the A/C ducting.

    I think there was another similar incident in Indonesia around the same time, as well. Does volcanic ash show on the weather radar?
    It does, but it is a lot more evident in satellite imaging.

  3. #93
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    Quote Originally Posted by Buttercup View Post
    drums fingers on desk
    drums fingers on desk
    drums fingers on desk


    Okay, Mt. Redoubt; anytime you'd care to finally erupt...

    I'm re-doubting this volcano.
    I would like to observe it erupt, but I do feel trepidation for possible harm it may cause.

  4. #94
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    Update:


    Nothing happening

  5. #95
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    A whole lot of nothing going on.
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  6. #96
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    Not true at all! On Sunday there was a faint wisp of steam floating away from the Volcano.....

  7. #97
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    Quote Originally Posted by Scamp View Post
    Not true at all! On Sunday there was a faint wisp of steam floating away from the Volcano.....
    Well, see post #88 above for 3/1, but thanks.

  8. #98
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    There's some activitiy on the REF and RSO.. getting some red bars again.

    RSO: http://www.avo.alaska.edu/webicorder...RSO_EHZ_AV.php
    REF: http://www.avo.alaska.edu/webicorder...REF_EHZ_AV.php
    Last edited by rommel543; 2009-Mar-04 at 04:32 PM. Reason: pasted wrong link.

  9. #99
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    Most of the red Bars are due to calibration pulses. Especialy the ones sort of in a retangle configuration.

    The Larger quake on those readings was actualy in Cook inlet, close to Reboubt.

    However no tremors since Saturday/Sunday after the last steam burst. But I don't think the volcano is done yet.

  10. #100
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    nothing to report, again

    Well, it makes Peters Creek happy.

  11. #101
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    Quote Originally Posted by jlhredshift View Post
    nothing to report, again
    In other news, Generalissimo Francisco Franco is still dead.

  12. #102
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    Quote Originally Posted by geonuc View Post
    In other news, Generalissimo Francisco Franco is still dead.
    <snort>
    At night the stars put on a show for free (Carole King)

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  13. #103
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    Quote Originally Posted by geonuc View Post
    In other news, Generalissimo Francisco Franco is still dead.
    I always hear that in Garrett Morris's "News for the Hard of Hearing" voice.
    _____________________________________________
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    "Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"

    "You can't erase icing."

    "I can't believe it doesn't work! I found it on the internet, man!"

  14. #104
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    2009-03-05 18:05:13

    Redoubt volcano has not erupted. Seismicity is low, and includes small, discrete earthquakes.

    Webcams and satellite images are obscured by clouds today.


    I hear no evil, I see no evil, well just to kill time:

    He who picks up rocks while running was _________?

  15. #105
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    Well after reviewing the latest RSAM plot (attached) I'd have to say that it looks as if Reboubt might very well be heading back to sleep for a while. It's a bit hard to be certain at this point.

    If it stays quiet, then I expect USGS willl downgrade it to an advisory/yellow condition next week.
    Attached Images Attached Images

  16. #106
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    I think we are done for a while.

    2009-03-10 10:38:14

    The color code at Redoubt has been lowered from Orange to Yellow. Please see the recent information release for more details. We will no longer post updates on Redoubt every two hours.

    Seismicity at Redoubt continues to be slightly above background but remains at low levels. No other unusul activity has been observed.

  17. #107
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    Now, now. I know you're disappointed but there's always another volcano just down the road.

    Cleveland and Okmok are at Yellow, too. Maybe one of them will pipe up.
    Brett's the name. Peters Creek is the place.
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  18. #108
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    Quote Originally Posted by PetersCreek View Post
    Now, now. I know you're disappointed but there's always another volcano just down the road.

    Cleveland and Okmok are at Yellow, too. Maybe one of them will pipe up.
    Or Yellowstone, The New Madrid Fault, or Mt. Rainer, I always worry that our place on this planet is temporary, sort of like being renters.

  19. #109
    Quote Originally Posted by jlhredshift View Post
    Or Yellowstone, The New Madrid Fault, or Mt. Rainer, I always worry that our place on this planet is temporary, sort of like being renters.
    Um, if Ranier goes off, would you loan me a couple more shovels?

    BIG shovels.

    Seriously, the one that worries me is the New Madrid failed rift. Look on google earth, and look at the pipelines through that region. !

  20. #110
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    Quote Originally Posted by jj_0001 View Post
    Um, if Ranier goes off, would you loan me a couple more shovels?

    BIG shovels.

    Seriously, the one that worries me is the New Madrid failed rift. Look on google earth, and look at the pipelines through that region. !
    There is evidence that as the pacific plate moves north west it is dragging the western half of North America clockwise and (speculation) could put tension on the rift. It would be a real mess.

  21. #111
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    I grew up in southern MO. and they dont build to earthquake standards. It would indeed be very ugly if New Madrid went off!

  22. #112
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    A teacher I had in high school went to Madison to escort some kids from my school at an academic competition, and she was just horrified by all that unreinforced brick. A friend of mine, who is from Maine originally, sees brick as stability. I see it as a deathtrap.
    _____________________________________________
    Gillian

    "Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"

    "You can't erase icing."

    "I can't believe it doesn't work! I found it on the internet, man!"

  23. #113
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    Well, as jlhredshift already posted, it's lookign like Redoubt might be done. For now.

    The seismographs today appear to have dropped to background level readings for a volcano.

    So all this build up for a small steam eruption it seems. This volcano seems to really live up to it's name!

  24. #114
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    Back to orange

    This AM

    2009-03-16 04:05:24

    Low level volcanic tremor has occurred continuously over the past six hours. Web camera images are dark.

    Redoubt has not erupted, but has returned to the level of unrest observed during parts of late January and February.

    The AVO operations center has resumed 24/7 monitoring of the volcano.

  25. #115
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    I'm back
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  26. #116
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    Low level volcanic tremor has occurred continuously over the past six hours.
    Ok, so the ground shakes, molecules bang together, and eventually the energy makes it to the surface to eventually be radiated into space.

    Question, how much energy is six hours of continuous shaking?

    It's probably not an earth shattering amount (cough), but it has to be something.

  27. #117
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    Quote Originally Posted by jlhredshift View Post
    Ok, so the ground shakes, molecules bang together, and eventually the energy makes it to the surface to eventually be radiated into space.

    Question, how much energy is six hours of continuous shaking?

    It's probably not an earth shattering amount (cough), but it has to be something.
    Depends on the force fo the material behind it. In this case....

    Redoubt has finally erupted?...it's small, but it has, sort of...

    2009-03-15 14:50:14 - VAN/VONA

    Seismic activity at Redoubt has increased since about 13:00 AKDT and is continuing. An AVO observation flight reported that a steam and ash plume rose as high as 15,000 ft above sea level and produced minor ash fall on the upper south flank of Redoubt. Last reports are that the plume is now mainly steam.

    Based on thsi change in activity AVO is increasing the level of concern and alert level to ORANGE/WATCH.
    It's funny though the twitter is still saying it has not erupted. However a ash emision quallifies as an eruprution, even if it is a small one. It's a darn good indication that there might be more coming down the road though.

  28. #118
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    Quote Originally Posted by dgavin View Post
    Depends on the force fo the material behind it.
    My bold

    So, its the middle amount of energy as in; (wait for it)


    FEE FI FO FUM

  29. #119
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    Quote Originally Posted by jlhredshift View Post
    My bold

    So, its the middle amount of energy as in; (wait for it)


    FEE FI FO FUM



    Actualy it's hard to nail down magnitude's of the tremors as they can vary quickly over short periods, yet last for hours.

    The best I've be able to do is guess an high average magnitude, that would rougly corralate to what would of happened if the energy over those hours, was released as a single quake. I assume USGS and professional Vulcanologists have better ways to accomplish this. I don't have that sort of access to the raw data (in a timely fassion) to figure out on my own however.

  30. #120
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    Well...it's already settled back down!

    I know guesses usually fire wide of the facts, but here is my semi educated opinion.

    For some reason the magma stopped moving which is likely temporary. However the magma is still releasing gasses, leading to the two steam bursts, and this latest steam/ash burst.

    This behavior of tremors followed by a small steam or steam/ash burst will be likely to continue, and might even be somewhat episodic, until the magma deeper down frees itself (or gets completely blocked off).

    So while Redoubt remains in this semi-choked up state, it could continue to exhibit this odd behavior. In some ways it may behave like a geyser. Quiet for a few weeks, then a small tremor with a steam or steam/ash burst following.

    The size of the emission's will be the tell tale sign here. If they stay at the current size, of a few hundred feet to the latest of 5000 feet. Then we are looking at a trapped magma's pocket gas release.

    If they steadily increase in size, then likely the magma is still on the move, but at a very slow rate.

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