Download 1989 Storm Map

The following map shows the electric field intensity (GIC hazard) across the US at the peak of the 1989 event. The red levels indicate > 2 V/km. It was calculated using the AVERT model with public data from the USGS (magnetic field) and EPRI (1-D conductivity models) as input. For more information on customized analyses, using local information for your system, please email GMD@cpi.com or call 303-442-3992.

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