On March 9, 2014, a magnitude 6.9 earthquake struck 50 miles (80 kilometers) offshore from Eureka, California, with its focus about 10 miles (16 kilometers) beneath the Pacific Ocean.
Notes on verification
Multiple independent outlets (CNN, NBC News, CBS News, USGS-derived reports) confirm the date, magnitude, and offshore distance from Eureka. Depth figure varies slightly between early (4.3 mi) and revised (10 mi) USGS estimates, which is typical for earthquake reporting. [tier=silver indep_score=0.917 clusters=3 claim_tier=notable]
Sources
- What Caused the California Earthquake? Faults Explained (seed:environment_and_wildlife)
- https://www.cnn.com/2014/03/10/us/california-earthquake/index.html (corroboration)
- https://www.nbcnews.com/news/us-news/magnitude-6-9-quake-strikes-northern-california-n48676 (corroboration)
- https://geotripper.blogspot.com/2014/03/magnitude-69-earthquake-offshore-of.html (corroboration)