Earthquakes Near 圣安东尼奥, United States 🇺🇸

圣安东尼奥 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 圣安东尼奥 in real time.

The seismic risk for 圣安东尼奥 is classified as high, based on the country-level seismic zone of United States. With a population of 1,526,656, earthquake preparedness is an important consideration for residents.

The most significant historical earthquake near 圣安东尼奥 was a magnitude 2.1 event in 2013, approximately 298 km NE of the city, resulting in approximately 14 casualties. QuakeFYI tracks 1 significant historical events within 500 km.

The nearest major fault line to 圣安东尼奥 is the West Lobo Valley fault zone, located approximately 615 km away and spanning 61 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.