A magnitude 3.8 earthquake struck near San Leandro, California, causing significant shaking felt across the Bay Area, including Oakland and Berkeley. The tremor, which was part of the Pacific Ring of Fire activity, was recorded early Thursday morning. Several aftershocks followed, and the intensity of the quake resulted in transportation delays, including BART train services. Residents reported feeling the quake in various locations, including the Santa Cruz Mountains. Additionally, a separate 2.2 magnitude quake was recorded nearby earlier in the month. The earthquake prompted numerous searches and led to increased interest in seismic safety within the region.