2024-12-16T14:53:31.96Z37.8341674804688-121.9213333129888.97999954223633manualconfirmedUSGS2.19md1Origin/20241216145551.421835.154699Magnitude/20241216145551.421887.154700USGS2 km NNW of Blackhawk, CAregion namenccatalognc75103966contributorID