Residents near San Francisco were awakened by a 6.0-magnitude earthquake early on Sunday morning.
The U.S. Geological Survey (USGS) reports the earthquake occurred at 3:20 a.m. PDT on Sunday 4 miles northwest of American Canyon, California. That puts the epicenter roughly 40 miles northeast of San Francisco and 51 miles west-southwest of Sacramento.
It is pure coincidence that the earthquake occurred at the same time the National Hurricane Center officially declared that Tropical Depression Four had strengthened into Tropical Storm Cristobal.
The USGS ShakeMap estimates that perceived shaking would have been severe in the vicinity of the epicenter. Such shaking could have caused moderate to heavy damage.
According to the map, shaking from the earthquake was less severe around San Francisco.
There are no immediate reports of severe damage or injuries, but this is a breaking news situation and AccuWeather.com will provide updates as they become available.
For any cleanup efforts, the weather will cooperate on Sunday as morning low clouds break for sunshine.
What that looked/felt like for in laws in Napa. #earthquake pic.twitter.com/avTYVedRkn— Andrew Crookston (@acr) August 24, 2014