A 4.3 magnitude earthquake jolted the East Bay Tuesday afternoon, according to the USGS.
The temblor reported at 1:11 p.m. was centered 7.7 miles east of Blackhawk and 9.2 miles north of Livermore, the USGS reported. It was felt across the East Bay. South Bay residents also reported feeling the quake.
USGS initially reported the earthquake was a magnitude 4.4.
A magnitude 3.5 aftershock also struck the same area at 1:24 p.m., according to the USGS.
Tuesday's quakes come a day after a magnitude 3.3 earthquake rattled the South Bay.