Natural Disasters

California vs Massachusetts: Earthquake Risk

California has very high earthquake risk, while Massachusetts has low earthquake risk.

California flag
California
CA · West
Very High
Relative seismic exposure based on FEMA National Risk Index (None / Low / Moderate / High / Very High).
Massachusetts flag
Massachusetts
MA · Northeast
Low
Relative seismic exposure based on FEMA National Risk Index (None / Low / Moderate / High / Very High).
California
Very High
Massachusetts
Low

People also ask

California vs Massachusetts Earthquake Risk — common questions

QWhat is California's earthquake risk?

California's earthquake risk is Very High.

QWhat is Massachusetts's earthquake risk?

Massachusetts's earthquake risk is Low.

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Data source and freshness

Primary source
FEMA — National Risk Index
Data period
Current National Risk Index release
Dataset reviewed
July 23, 2026
Method note
Relative state exposure labels summarized from FEMA hazard-risk data.