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Thread: Mt. Etna Activity

  1. #1
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    Mt. Etna Activity

    Mt. Etna is erupting again, after 9 days of seismic volcanic tremors, and it's spilling out some nice lava flows along it's snow cover flanks.

    Edit to add.

    This is an external link, but some photos available here http://photos.denverpost.com/mediace...uptions/29158/

  2. #2
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    I am of the opinion that if you can go out your front door and see red hot lava, you are living too close to the volcano.

  3. #3
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    Wow, I have a bad feeling about this.

    Let's hope she neither St. Helens or Pinatubos on them.
    Time wasted having fun is not time wasted - Lennon
    (John, not the other one.)

  4. #4
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    Quote Originally Posted by korjik View Post
    I am of the opinion that if you can go out your front door and see red hot lava, you are living too close to the volcano.
    Well, we used to regularly sweep ash off the balcony. One morning it was a couple of inches thick.

    ETA: thanks for the link, dgavin. Excellent pics.
    Last edited by Strange; 2012-Feb-10 at 02:07 PM.

  5. #5
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    Quote Originally Posted by dgavin View Post
    This is an external link, but some photos available here http://photos.denverpost.com/mediace...uptions/29158/
    Wow, some great photos there, including some really nice fountains.
    At night the stars put on a show for free (Carole King)

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  6. #6
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    I didn't really understand the process that makes volcanic fountains and such until I read about the efforts of de-gas various carbonated lakes in Africa. You run a three foot diameter pipe down to where the water is heavily carbonated, start a temporary pump and as the water rises in the pipe the pressure comes off it and the CO2 bubbles out of it, which then becomes a self sustaining fountain of water 150' tall.

    Does any body know the main driving gases in Etna?
    Time wasted having fun is not time wasted - Lennon
    (John, not the other one.)

  7. #7
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    Quote Originally Posted by BigDon View Post
    Does any body know the main driving gases in Etna?
    I don't know, but I believe for most volcanoes it is CO2, water, and maybe some H2S.

    P.S. - I love Google. A 1980 paper from Mineralogical Magazine titled "A carbon dioxide-rich volatile phase in Mount Etna volcanism"
    H20 90.03
    CO2 5.3
    CH4 3.99
    SO2 0.45
    HCl 0.39
    H2S 0.06
    Ar 0.05
    From Table 1 - Percent partial pressures in gases extracted from whole rock samples of lava
    At night the stars put on a show for free (Carole King)

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  8. #8
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    Mt. Etna is Active again, with lava fountaining of 100m mesured on the 27th (appropriately enough that was my birthday). As of this morning it now has three active craters on the summit, all erupting lava. The latest crater to go active, Voragine, hasn't seen any activity since 1999.

  9. #9
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    John Seach has a report on his news feed that Mt. Etna, produced a 1000m (1km, >3/4 mile) high lava fountain on the 20th April.

    The following black and white is the only photo I could locate that might be a record of this event. Unfortunately it is during the day so you can't make out the fountain inside the ash cloud.

    http://thewatchers.adorraeli.com/wp-...4/Emov0321.jpg

  10. #10
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    There is a page on this from the Osservatorio Etneo: http://www.ct.ingv.it/en/component/c...tizie/news/885

  11. #11
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    Good find

  12. #12
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    I thought I would try searching in Italian to see what that would turn up: a page in English!

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