The first earthquake recorded at 3:01 p.m. had a preliminary magnitude of 2.5 and had a depth of 8 miles, USGS officials said.
The quake was in an area 1 mile south of Concord, 2 miles northeast of Pleasant Hill and 4 miles north-northeast of Walnut Creek, USGS officials said.
A second temblor with a preliminary magnitude of 4.0 that struck in the same area as the first one has been downgraded to a magnitude of 3.6.
The third quake occurred a minute later with a preliminary magnitude of 2.7 and a depth of 8.1 miles in the same region, USGS officials
Click here for a look at the latest quakes to hit the Bay Area.
@abc7newsBayArea yes there have been several in the last few minutes— Camron Shelton (@CamronShelton) May 3, 2015
@abc7newsBayArea I am in Concord. Felt the earthquake. It wasn't violent, nothing fell from the shelves. It only lasted a few seconds.— Casey (@coulter_casey) May 3, 2015
@abc7newsBayArea I told my mom I felt something!! She didn't believe me.— Stephanie (@Sunkissd82) May 3, 2015
@abc7newsBayArea YES we felt it in the Mission in San Francisco and my mom felt in Pleasant Hill!— leigh stackpole (@missleigh09) May 3, 2015
@abc7newsBayArea I felt it in Daly City. That had to be bigger than 2.7 if I felt it.— Miss Fluffy (@TheFluffyKitty) May 3, 2015
ABC7 News contributed to this story.