Live seismic activity in Bulgaria — updated every 60 seconds from USGS data. Bulgaria experiences moderate earthquakes, mainly along the Balkan fault zone and near the Vrancea seismic zone in neighbouring Romania.
Bulgaria experiences moderate earthquakes, mainly along the Balkan fault zone and near the Vrancea seismic zone in neighbouring Romania. The 1977 Vrancea earthquake (M7.4) caused significant damage in Bulgaria, with over 100 deaths. Major faults include Balkanides thrust front, Maritsa fault system, Sofia graben. Notable quakes include 1977 Vrancea (M7.4 felt), 1904 Kresna (M7.2), 1986 Strazhitsa (M5.7). The seismic risk is moderate. Tectonically, Bulgaria lies on the collision zone between the African and Eurasian plates, part of the Alpine-Himalayan belt. This page provides real‑time USGS data and historical context for Bulgaria.
The region is defined by Balkanides thrust front, Maritsa fault system, Sofia graben, and the risk level is classified as Moderate. With a population of 6.5 million, understanding local seismic hazards is crucial.
Bulgaria lies on Alpine-Himalayan collision zone – African Plate converging with Eurasian Plate. The movement of these plates builds up stress, which is released as earthquakes. In subduction zones, one plate dives beneath another, generating some of the largest quakes on Earth. In some regions, strike‑slip faults produce frequent moderate earthquakes.
Notable earthquakes in Bulgaria include 1977 Vrancea (M7.4 felt), 1904 Kresna (M7.2), 1986 Strazhitsa (M5.7).
Bulgaria experiences approximately 50-200 earthquakes per year, with 5-20 felt (M3.0+) and 0-2 potentially damaging events (M5.0+) annually, according to USGS historical data.
Recent seismic activity has been recorded in Bulgaria.
Yes. Bulgaria is crossed by Balkanides thrust front, Maritsa fault system, Sofia graben, making it prone to seismic activity. The seismic risk level is classified as Moderate.
Drop, cover, and hold on. Stay away from windows, and if outdoors, move to an open area. After the shaking stops, check for injuries and be ready for aftershocks. Prepare an emergency kit with water, food, first aid, and a flashlight.
Data sources: USGS real‑time feed, USGS historical archive, and Wikipedia. Page refreshes live earthquake data every 60 seconds.