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Real-time earthquake monitoring for SF Peninsula / Millbrae / Pacifica. Track seismic activity along the San Andreas Fault in San Mateo County.
37 earthquakes recorded in the last 30 days. The most recent was M1.3 on 1/28/2026.
Peninsula along the San Andreas Fault. This region is monitored by the USGS seismic network and experiences regular seismic activity due to the San Andreas Fault.
The San Andreas Fault is one of the major fault systems in the San Francisco Bay Area. Earthquakes in this region can range from minor tremors to significant events that may be felt across multiple counties.
The San Andreas Fault is part of the San Andreas Fault System, which is the primary boundary between the Pacific Plate and the North American Plate. Understanding earthquake activity along this fault is crucial for earthquake preparedness in San Mateo County and surrounding areas.