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Thread: Lava flow threatens Pahoa, HI

  1. #61
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    Thanks for clarifying. There's too much to keep track of.

  2. #62
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    Hawaiian Volcano Observatory (HVO) Webcams page is worth a periodic look these days.

  3. #63
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    Yes indeed. I hit the HVO site daily, checking for updates. I need to remind myself to look at the webcams more often.

    A couple of months back I looked at the Mauna Load thermal cam and was shocked to see the thermal activity there. Then I noticed the temperature scale, which went from about -4 to +4 C! Oh.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  4. #64
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    Just found this video on YouTube from the USGS. Pretty "cool"

    A small explosive event that occurred at 1:20 p.m. Sunday, May 3, 2015 at the summit lava lake. A collapse of a portion of the Halemaʻumaʻu Crater wall impacted the lake and triggered an explosion of spatter. Fist-size clasts were found scattered along the rim of Halemaʻumaʻu Crater near the closed visitor overlook. Video courtesy of USGS/HVO
    I love the waves rolling around the lava lake.
    At night the stars put on a show for free (Carole King)

    All moderation in purple - The rules

  5. #65
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    Very cool indeed. Since then the mountain has been in a deflationary phase and, last I looked, the lava lake has retreated to 20m below the original crater floor.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  6. #66
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    A whole month since I updated! Because nothing exciting has been happening, of course. There was a brief flurry of seismic activity shortly after my last post that suggested the Western Rift Zone might become active but that died down within a day or two.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  7. #67
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    Quote Originally Posted by Trebuchet View Post
    A whole month since I updated!
    You could try posting to the Iceland thread.
    That's been getting pretty sparse as well.
    Maybe dgavin's Mt. Axial will go off with a bang and we can have some forum activity again.

  8. #68
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    Or Mt St Helens. Or Mt Rainier. Or the Yellowstone Supervolcano, which I'll be visiting in a few days!
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  9. #69
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    Just remember: "There is no such thing as an " Extinct Volcano " .

  10. #70
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    Actually, I think most cinder cones a pretty much one-and-done.

    From Wikipedia:
    Some cinder cones are monogenetic which means once it erupts, it will never erupt again. Paricutin, Diamond Head, Koko Head, Punchbowl Crater and some cinder cones on Mauna Kea are monogenetic cinder cones but monogenetic eruptions can last for more than 10 years. Paricutin erupted from 1943-1952.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  11. #71
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    Here's an awesome video of last fall, which I found courtesy of Dana Hunter at En Tequila Es Verdad. Dana is one of the few internet acquaintances I've actually met in real life--she comes to my pumpkin tossing.

    Meanwhile, it looks like life may getting back to normal in Pahoa. http://www.bigislandvideonews.com/20...a-anniversary/
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  12. #72
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    Quote Originally Posted by Trebuchet View Post
    Here's an awesome video of last fall
    So that's how lava deals with chain link fence.
    Zinc, the galvanizing on the fence, burns blue, so that yellow flame must be coming from steel or a steel/zinc mix.
    Pahoa lava only runs about 900C, well below melting point of most steel, and also below the usual ignition point.
    The Pahoan's might do better to replace their galvanized fences with chrome plated versions.

  13. #73
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    But as noted before, the fence did a pretty remarkable job of mostly holding the flow in check. As a result, the transfer station suffered little damage and is back in operation.

    Pahoa, overall, has had a pretty remarkable escape. Just one house was destroyed. One. The almost-new police and fire station was approached, but the lava never got there. No one was hurt. That's a good outcome.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  14. #74
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    Surely it wouldn't touch the fire station !!

  15. #75
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    I just realized I hadn't checked the HVO website for a couple of weeks. I didn't miss anything and neither did you. Active lava flows are no farther than 8km from Pu'u O'o and the summit crater lava lake is 70m below the rim.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  16. #76
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    No news continues to be good news.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  17. #77
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    I just realized I hadn't checked the HVO pages or updated this thread in a long time. I almost needn't have bothered. Nothing of interest to anybody but actual vulcanologists continues to happen.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  18. #78
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    I follow Volcano National Park on Facebook (HVO doesn't seem to have an official Facebook page). Except for the lava lake in Halemaʻumaʻu Crater, things are relatively quiet lately.
    At night the stars put on a show for free (Carole King)

    All moderation in purple - The rules

  19. #79
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    Which is good, because my friend has moved back to Pahoa.
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