A magnitude 6.4 earthquake struck near Petrinja, Croatia, about 30 miles southeast of the capital of Zagreb, on December 29, 2020 at about 6:20 am Eastern Time (12:20 pm local time). Seismic instruments indicate the earthquake originated at a depth of about 6 miles (10 kilometers).

This is the largest earthquake to occur in Croatia since the advent of modern seismic instruments. An earthquake of similar size occurred in 1880 near Zagreb and three magnitude 6 and larger earthquakes have occurred within 125 miles (200 kilometers) of the December 29, 2020 earthquake since 1900. A magnitude 5.6 earthquake on November 27, 1990, about 110 miles (175 kilometers) to the southeast, injured 10 people.

The USGS has posted an event page providing more details. Perceived shaking for the earthquake was very strong. The preliminary PAGER report is Orange for economic losses, indicating significant damage is likely and the disaster is potentially widespread. This event was also felt in Germany, Italy, Hungary and other nearby countries.

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If you felt this earthquake, report your experience on the “USGS Did You Feel It?” website for this event.

Learn more about the USGS Earthquake Hazards Program.

Earthquake Information/Resources

• Earthquake Basics
• USGS Earthquakes Homepage
• Earthquake Frequently Asked Questions (FAQs)
• USGS Roles, Responsibility, and Research
• Did You Feel It?