March 27, 2009 5:35 PM AKDT


Start of event: March 28, 2009 01:35 UTC
(March 27, 2009 5:35 PM AKDT)

Lightning Mapping Data

An animation of the lightning sequence:

This explosion produced electrical activity for 30.3 minutes. Plume heights reached 12.2 km. The activity began with a few scant sources over the volcano, followed by two discrete discharges, also located over the volcano. A flux of small discharges (with little structure) followed. The discharges gradually became more structured, larger and discrete.

Clam Gulch Station

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