Earthquakes Near San Francisco, United States 🇺🇸

San Francisco is located in United States, which has a high seismic risk classification. Earthquake frequency varies, but the QuakeFYI monitoring system tracks all M2.5+ events within 500 km of San Francisco in real time.

The seismic risk for San Francisco is classified as high, based on the country-level seismic zone of United States. With a population of 827,526, earthquake preparedness is an important consideration for residents.

The most significant historical earthquake near San Francisco was a magnitude 7.9 event in 1906, approximately 13 km SW of the city. QuakeFYI tracks 5 significant historical events within 500 km.

The nearest major fault line to San Francisco is the Hayward (No) 2011 CFM, located approximately 24 km away and spanning 53 km in length. Proximity to active faults is a key factor in assessing seismic risk.

During an earthquake, follow the Drop-Cover-Hold On protocol: drop to your hands and knees, take cover under sturdy furniture, and hold on until shaking stops. Move away from windows, exterior walls, and heavy objects. After the shaking stops, be prepared for aftershocks and check for injuries and hazards.