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River branches into two arms, the larger--the upper in the image--plunging down a cascade above which blue sulfurous fume hangs. Lava flows from right to left. The branch is also shown at the far right side of the left image.
Surge from front of `a`a flow below rootless shield at 2150-foot elevation
Series of four images taken in early morning sun showing surging advance of front of an `a`a flow, a distributary of the branch of the cascading river shown in right image above. This image taken at 07:12:14.
07:13:12. Twenty-two seconds later and from a slightly different vantage point, the surge from the flow front is ending, and the new lobe is spreading out and slowing.