The U.S. Geological Survey said the 4.0 magnitude quake struck Monday morning and was centered just north of Piedmont, near Berkeley. It was felt in downtown San Francisco, along the Peninsula and in the East Bay. The quake struck on the Hayward Fault at a depth of about 3.4 miles, according to the USGS.
The shallow quake at 6:49 a.m. was a sharp jolt, followed by a couple of gentle rolls. It was not immediately known if the quake caused damage.
Bay Area Rapid Transit is holding trains to check the tracks on the public transit system. Commuters should expect delays.
The 4.0 earthquake centered in Piedmont struck at 6:49 a.m. local time. The quake was felt far and wide around the Bay Area and several small aftershocks have been reported.
GET THE LATEST DETAILS ON THE EARTHQUAKE HERE
#BREAKING: 4.0 #earthquake felt widely across Bay Area. http://t.co/CskSjCzfFO If you felt it or have pics of damage tag with #abc7now!
— ABC7 News (@abc7newsBayArea) August 17, 2015
UPDATE: At least 6 aftershocks hit Bay Area following 4.0 #earthquake, largest was 2.4 magnitude. http://t.co/WowZp56QtK
— ABC7 News (@abc7newsBayArea) August 17, 2015
After the 4.0 earthquake this morning -- a shattered ceramic goat from Greece. 😢 #abc7now pic.twitter.com/G2xJGsL7Yu
— Maddie Malan (@MaddieMalan) August 17, 2015
took forever to hang that shelf. #abc7now #earthquake pic.twitter.com/FYIZRvKoQX
— brittany o'brien (@britbrobrien) August 17, 2015
The #earthquake in #Oakland sounded like explosion. It woke me up and my air bed was shaking badly. My 2 #dogs were so scared. #abc7now!
— Dezi D (@nilou83) August 17, 2015
Woken up by an #earthquake in my hotel room in downtown San Francisco! Would know that feeling anywhere from growing up in CA #ABC7now
— Lori Carswell (@lkcarswell) August 17, 2015
#abc7now well that earthquake scared the living crap out of me. (El Sobrante)
— Sanjana|Anji (@PureParadise152) August 17, 2015
Nothing says hello Monday like an #earthquake in the marina. #abc7now
— Hannah Hartman (@TeacherHartman) August 17, 2015
#abc7now in alameda, initial kick followed by a hefty amount of shaking. Definitely got me out of bed 🏃🏻
— Katherine Ryziewicz (@KatRyziewicz) August 17, 2015
#abc7now in Pinole, it felt like a strong jolt then a quick shake for about 3 seconds.
— dawnpmrn (@DawnpmRN) August 17, 2015
#abc7now in alameda, initial kick followed by a hefty amount of shaking. Definitely got me out of bed 🏃🏻
— Katherine Ryziewicz (@KatRyziewicz) August 17, 2015
Nothing like an earthquake to start off your week! #earthquake #strongjolt #feltitinmontclair #californialiving #abc7now
— Ije-Enu N Udeze (@alwaysije) August 17, 2015
Several small aftershocks have been reported following the earthquake that struck in Oakland Monday morning, according to the U.S. Geological Survey.
The 4.0 quake was reported at 6:49 a.m. and was located in the Oakland hills about a mile north of Piedmont and 3 miles south of Berkeley, USGS officials said.
The quake had a depth of about 3.3 miles and struck on the Hayward Fault, which also saw a 4.0-magnitude earthquake on July 21 in Fremont.
Several small aftershocks were reported in the hour after this morning's quake, the biggest of which was a 2.4-magnitude temblor in the same area at 7:40 a.m., according to the USGS.
BART stopped trains to inspect the tracks for possible damage. No damage was found, but major delays persist.
The quake was reported across the Bay in San Francisco and on the Peninsula, as well as out in Concord and elsewhere in Contra Costa County.
No major damage or injuries have been reported as a result of the quake.
#BayBridge looks unaffected by this AM's 4.0 mag #earthquake centered in #Piedmont. Murky air due to #TrinityFire pic.twitter.com/lcumKqX2Z1
— Leyla Gulen (@LeylaGulenABC7) August 17, 2015
Checking our #BayArea bridges for damage following 4.0 mag temblor in #Piedmont..so far no problems. #DriveSafe pic.twitter.com/C03T2CMaM8
— Leyla Gulen (@LeylaGulenABC7) August 17, 2015
BREAKING: @USGS reporting a 4.0 magnitude #Earthquake 1 mile north of Piedmont along Hayward fault pic.twitter.com/rkukz9RfsI
— Drew Tuma (@DrewTumaABC7) August 17, 2015
The Associated Press contributed to this report.