Seismic history
Major earthquakes, volcanic eruptions and geological events in Bulgaria, 1900–2026, with sources and detailed information.
Total earthquakes
28
M5+
Strongest
M7.1
M7+ events
2
| Date | Magnitude | Location | Depth | Source |
|---|---|---|---|---|
| 1928-04-14 | 7.1 | 9 km S of Stara Zagora, Bulgaria | 10 km | USGS Earthquake Hazards Program |
| 1904-04-04 | 7.0 | 7 km SE of Stara Kresna, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 1913-06-14 | 6.7 | 5 km NNE of Lyaskovets, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 1931-03-08 | 6.7 |
| 3 km SW of Kuklis, North Macedonia |
| 10 km |
| USGS Earthquake Hazards Program |
| 1931-03-07 | 6.2 | 5 km NNE of Valandovo, North Macedonia | 15 km | USGS Earthquake Hazards Program |
| 1905-10-08 | 6.1 | 15 km NE of Bobov Dol, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 1990-12-21 | 6.1 | 14 km WNW of Gouménissa, Greece | 13 km | USGS Earthquake Hazards Program |
| 1909-02-15 | 6.1 | 11 km ENE of Elhovo, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 1921-08-10 | 5.9 | 1 km WSW of Vladimirovo, North Macedonia | 15 km | USGS Earthquake Hazards Program |
| 1928-04-25 | 5.8 | 4 km NW of Simeonovgrad, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 2012-05-22 | 5.6 | Serbia-Bulgaria-Macedonia border region | 10 km | USGS Earthquake Hazards Program |
| 1986-12-07 | 5.6 | 6 km NW of Strazhitsa, Bulgaria | 21 km | USGS Earthquake Hazards Program |
| 1924-12-23 | 5.5 | 23 km NNW of Chrysoúpolis, Greece | 15 km | USGS Earthquake Hazards Program |
| 1956-06-30 | 5.5 | 35 km ESE of Shabla, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 1936-04-08 | 5.5 | 5 km ESE of Rupite, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 1953-06-18 | 5.5 | 11 km SW of Lâlapa?a, Turkey | 35 km | USGS Earthquake Hazards Program |
| 1932-05-27 | 5.5 | 3 km WNW of Zâmbreasca, Romania | 15 km | USGS Earthquake Hazards Program |
| 1910-02-23 | 5.4 | 7 km W of Simitli, Bulgaria | 10 km | USGS Earthquake Hazards Program |
| 1926-09-03 | 5.4 | 9 km S of Lyubimets, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 1985-09-28 | 5.3 | 14 km NW of Kon?e, North Macedonia | 7 km | USGS Earthquake Hazards Program |
| 2009-05-24 | 5.3 | 11 km WNW of Stathmós Mourión, Greece | 0 km | USGS Earthquake Hazards Program |
| 1907-08-17 | 5.3 | 7 km E of Demir Kapija, North Macedonia | 10 km | USGS Earthquake Hazards Program |
| 1928-04-19 | 5.2 | 8 km NNE of Dimitrovgrad, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 1977-11-03 | 5.2 | 8 km N of Velingrad, Bulgaria | 6 km | USGS Earthquake Hazards Program |
| 1966-02-08 | 5.2 | 4 km SSW of Genisséa, Greece | 15 km | USGS Earthquake Hazards Program |
| 1972-08-12 | 5.2 | 12 km NW of Kilkís, Greece | 10 km | USGS Earthquake Hazards Program |
| 1959-06-16 | 5.1 | 6 km SW of Dolna Banya, Bulgaria | 15 km | USGS Earthquake Hazards Program |
| 1974-06-22 | 5.1 | 12 km SSW of Kolarovo, Bulgaria | 33 km | USGS Earthquake Hazards Program |