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Is Halema‘uma‘u Pau?

Detailed Description

On December 4, at 9:20 a.m., a collapse in the Halema‘uma‘u vent turned the plume a dusty-brown color and deposited a thin layer of ash on the road downwind of the vent. Forty minutes later, at 10:00 a.m., the plume was greatly diminished. Since this December 4 event, the plume has been small and wispy, except when heavy rains cause an increase in steam.