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2021 California Participation Totals

participants were registered in the 2021 Great California ShakeOut (as of 07/11/2025 10:46 AM PST).

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 California ShakeOut