Stephen <mca### [at] aolcom> wrote:
> I would have expected it to look as if the internals were rolling like a
> hydrocarbon fire.

A pyroclastic flow is not a hydrocarbon fire.


ardentes.  The glow is difficult to see in daylight, but I have seen it in video

local news for me.)  The edge of the flow, where it contacts the ground, looks
like glowing embers.

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