Earthquakes Near Ulsan, South Korea 🇰🇷

Ulsan is located in South Korea, which has a moderate seismic risk classification. Earthquake frequency varies, but the QuakeFYI monitoring system tracks all M2.5+ events within 500 km of Ulsan in real time.

The seismic risk for Ulsan is classified as moderate, based on the country-level seismic zone of South Korea. With a population of 1,095,014, earthquake preparedness is an important consideration for residents.

The most significant historical earthquake near Ulsan was a magnitude 7.9 event in 1909, approximately 423 km S of the city. QuakeFYI tracks 5 significant historical events within 500 km.

The nearest major fault line to Ulsan is the Chichio, located approximately 486 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.