A 6.0 magnitude earthquake strikes Napa, California, in the northern San Francisco Bay area of the United States. It is the largest earthquake to strike Northern California in 25 years since the 1989 Loma Prieta earthquake. [http:--www.latimes.com-local-lanow-la-me-earthquakesa-earthquake-61-quake-strikes-near-american-canyon-calif-ojffev-story.html ("Los Angeles Times")] [http:--news.msn.com-us-usgs-60-earthquake-shakes-northern-california (MSN)]date=April 2020