KGO – San FranciscoMagnitude-4.3 earthquake, 3.5 aftershock jolt Livermore, San Ramon, Blackhawk areaKGO – San FranciscoUpdated July 16, 2019 at 10:14 PMLink CopiedRead full articleA magnitude-4.3 earthquake struck east of Blackhawk around 1:15 p.m. on Tuesday. View comments