A preliminary 3.0 magnitude earthquake struck near Danville Sunday afternoon, hours after a series of small quakes ranging in magnitude from 1.5 to 3.0 rattled the same area, according to the USGS.
At least five temblors struck the East Bay area between 10:34 a.m. and 10:41 a.m., according to the USGS. Two more followed at 11:28 a.m. and 11:41 a.m. The afternoon quake struck hours later at 3:25 p.m.
All eight temblors struck in an area approximately 1 mile away from both Danville and Diablo and 4 miles southeast of Alamo, according to the USGS.
The largest of the seven morning quakes — a 3.0 magnitude earthquake — hit at 10:34 a.m., according to the USGS. A magnitude 2.7 earthquake in roughly the same location followed at 10:38 a.m.
Two 1.9 magnitude quakes and a 1.6 magnitude quake also struck during the 7-minute window in the 10 o'clock hour.
During the next hour, a 2.4 magnitude quake rattled at 11:28 a.m., and a 1.5 magnitude temblor struck minutes later at 11:41 a.m.
Track the latest Bay Area earthquakes using NBC Bay Area's Earthquake Map.