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2018 Colorado Participation Totals

participants were registered in the 2018 Great Colorado ShakeOut (as of 05/09/2025 4:10 AM MST).

View statistics by ShakeOut year:

CategoryParticipants
Participation totals for each area Total
© 2025 Statewide California Earthquake Center (SCEC), headquartered at the University of Southern California (USC)
The Great Colorado ShakeOut