A sudden swarm of earthquakes hit San Ramon, East Bay, California, this morning — more than 20 tremors between M 2.5 and 3.8 along the Calaveras Fault, part of the powerful San Andreas system. No major damage has been reported, but the timing and clustering have scientists watching closely — could this be a routine stress release, or a sign of something bigger brewing beneath the Bay Area? 🎥 AI-generated cinematic visualization for education and awareness. 🌐 Sources: USGS | SF Chronicle | Sacr