Since November 2025, swarms of earthquakes of up to 4.2 magnitude have bombarded San Ramon and the surrounding area, seven years after the last swarm in 2018. In a region situated between the Calaveras Fault and the Pleasanton Fault, both capable of earthquakes, it’s common for San Ramon to experience the occasional small shake. However, experts warn Bay Area residents to prepare for and learn how to react to more severe earthquakes.
Though the quakes San Ramon has experienced thus far can still be considered relatively small, the Calaveras Fault is capable of hosting earthquakes of 6.7 magnitude or larger, which can cause serious damage. As such, experts advise those living in Earthquake Country to stay informed about earthquake safety and crisis preparation.
“A lot of experts agree that, in order to prevent the most injuries – which are mostly caused by things that fall during earthquakes by the forces of shaking – you want to make yourself as small a target as possible,” Mark Benthien, the Director of Public Education and Preparedness at the Statewide California Earthquake Center, said…