A building is seen destroyed following a reported 6.0 earthquake on August 24, 2014 in Napa, California.(Photo by Justin Sullivan/Getty Images)
A magnitude 6.0 earthquake hit California’s northern c early Sunday morning, injuring at least 172 people.
The quake, the biggest in the region in 25 years, hit at 3:20 a.m. (1020 GMT) (1120 BST).
It was centered 6 miles (10 km) south of the city of Napa or about 50 miles northeast of San Francisco.
Historic buildings were damaged and homes were set on fire.
The quake went for about 50 seconds.
On Sunday afternoon, at least 33 buildings in the city are red tagged which means they are not safe to be entered.
Here are some photos of the aftermath:
A Napa firefighter inspects one of four mobile homes that were destroyed in a gas fire Sunday, Aug. 24, 2014, at the Napa Valley Mobile Home Park, in Napa, Calif. (AP Photo/Ben Margot)
A Napa firefighter inspects one of four mobile homes that were destroyed in a gas fire Sunday, Aug. 24, 2014, at the Napa Valley Mobile Home Park, in Napa, Calif. (AP Photo/Ben Margot)
Jorge Sanchez, left, and Rob Doughty, right, look over damage to the main post office following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. (AP Photo/Eric Risberg)
A man uses a garden hose cool hot spots from a fire at a mobile home park following a reported 6.0 earthquake on August 24, 2014 in Napa, California. (Photo by Justin Sullivan/Getty Images)
Water gushes from the ground from a water main break oustide of a mobile home park following a reported 6.0 earthquake on August 24, 2014 in Napa, California. (Photo by Justin Sullivan/Getty Images)
Jean Meehan looks over the damage to her JHM Stamp and Collectibles store following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. (AP Photo/Eric Risberg)
Bricks are in the street after a building was damaged during an earthquake in Napa, Calif., Sunday, Aug. 24, 2014. (AP Photo/Ellen Knickmeyer)
A building is seen destroyed following a reported 6.0 earthquake on August 24, 2014 in Napa, California.(Photo by Justin Sullivan/Getty Images)
People survey a destroyed building following a reported 6.0 earthquake on August 24, 2014 in Napa, California. (Photo by Justin Sullivan/Getty Images)
Bricks from a damaged building sit on a car following a reported 6.0 earthquake on August 24, 2014 in Napa, California. (Photo by Justin Sullivan/Getty Images)
A building is seen destroyed following a reported 6.0 earthquake on August 24, 2014 in Napa, California.(Photo by Justin Sullivan/Getty Images)
Elvira Balbazar, an employee at the 3J’s Oreintal Market cleans up after an earthquake Sunday, Aug. 24, 2014, in American Canyon, Calif. (AP Photo/Rich Pedroncelli)