March 26, 2009 09:24 AM AKDT


Start of event: March 26, 2009 17:24 UTC
(March 26, 2009 09:24 AM AKDT)

Lightning Mapping Data

An animation of the lightning sequence:

Plume heights up to 18.3 km were measured during this explosion. Total duration of electrical activity was 34.4 minutes. Electrical activity began at approximately 17:25. The initial activity was amorphous, random and located over the vent. This phase was very brief; after 40 seconds more structured lightning had taken over, building up to obvious, but small, discrete discharges by 17:33.

Clam Gulch Station

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