This `a`a flow originated from a breakout of lava tube 200-300 m
upslope on Pulama pali. The breakout initially
formed a pahoehoe flow. As the pahoehoe sped down the steep slope of the pali, it
transformed into `a`a. When the photographs were taken, the front of the `a`a was advancing at a rate of 1 m per minute or faster, burning and
bulldozing its way through the bordering `ohi`a forest.
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