USGS
Hawaiian Volcano Observatory

Photo Information
Scientists survey across lava tube, Kilauea Volcano, Hawai`i
Photograph by C. Heliker on September 8, 1992
Geophysicists make measurements across the roof of a lava tube leading from the episode 51 vents. The measurements reveal the size of the tube and the cross-sectional area of the lava stream. Together with measurements of the speed of the lava stream, these data allow us to estimate lava discharge from the volcano.

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Updated: 18 May 2000