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Lava Level Change in PKK Tube Skylight (June 11, 2006)
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Title: Lava Level Change in PKK Tube Skylight (June 11, 2006)


To document changes in the lava stream level within the Prince Kuhio Kalaniana'ole (PKK) lava tube, a time-lapse camera was placed on the brink of a lava tube skylight (an opening in the roof of the lava tube) with a view of the lava. This skylight was informally called the Petunia skylight because short, lobate lava flows, looking like petals on a flower, had emerged from and chilled around the skylight. The camera successfully captured several abrupt and short-lived increases in lava stream level that eventually sealed the skylight shut. This video shows one of these brief increases in lava level. Note how a standing wave forms on the surface of the lava stream as the level begins to rise. With further lava stream rise, the standing wave gives way to a turbulent surface with the wave appearing to roll back upstream and culminates in a nearly stationary, bubbling surface just below the mouth of the skylight. As the level drops, the lava stream reverses back through each of these stages.

The images that comprise this video were acquired by a time-lapse camera. The image acquisition rate was 1 frame per minute, and the resulting video is played at 10 frames per second.

Location: HI, USA

Date Taken: 6/11/2006

Length: 0:00

Video Producer: U.S. Geological Survey

Note: This video has been released into the public domain by the U.S. Geological Survey for use in its entirety. Some videos may contain pieces of copyrighted material. If you wish to use a portion of the video for any purpose, other than for resharing/reposting the video in its entirety, please contact the Video Producer/Videographer listed with this video. Please refer to the USGS Copyright section for how to credit this video.

For more information, visit the HVO Web site at Hawaiian Volcano Observatory.

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Tags: HVO Hawaii Kilauea LavaTube PuuOo Volcano


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