Magnitude-4.1 quake hits Napa Valley

A 4.1 magnitude earthquake struck in California's Napa Valley Thursday night, the U.S. Geological Survey confirms.

The temblor struck about 9 miles north of Napa, about 14 miles northeast of Sonoma and about 42 miles west-southwest of Sacramento, the state capital, according to the agency. The closest city to where the quake struck is Yountville, about six miles away.

The staff at Bistro Jeanty said the quake did not affect them too drastically.

"Nothing more than just broken lassware really," maitre d Devon Smith said. "We're pretty ready and set for it here and everything that would move is held down by earthquake putty."

Last August, a 6.0- magnitude temblor struck the area, known for wines and wineries. About 300 people suffered injuries and more than 1,000 buildings suffered damage in that quake.