The USGS's estimated number of Americans at earthquake risk is almost twice the 75 million cited in a similar 2006 study.
Notes on verification
Confirmed by USGS official statements, peer-reviewed publication in Earthquake Spectra, and independent news coverage (CBS, CNN, Scientific American) all citing the same 75 million to 143 million comparison. [tier=silver indep_score=1.0 clusters=2 claim_tier=notable]
Sources
- If You Think You're Safe From Earthquakes, You May Be ... (seed:environment_and_wildlife)
- https://www.usgs.gov/news/featured-story/nearly-half-americans-exposed-potentially-damaging-earthquakes (corroboration)
- https://www.cbsnews.com/news/nearly-half-of-americans-at-risk-of-an-earthquake/ (corroboration)
- https://pubs.usgs.gov/fs/2006/3016/2006-3016.pdf (corroboration)