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List of earthquakes in Bulgaria

This list of earthquakes in Bulgaria is organized by date and includes events that caused injuries/fatalities, historic quakes, as well events that are notable for other reasons.

Seismic hazard map of Bulgaria, showing the calculated Peak Ground Acceleration in terms of g for a 475 year period

Earthquakes

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Key

  •   Epicenter outside Bulgaria
Name Date Epicentre Mag. MMI Depth (km) Notes Deaths Injuries
1802 Vrancea earthquake 1802101400001802-10-14 Vrancea Mountains, Romania 7.9 VIII 150.0 The cities of Ruse, Silistra, Varna and Vidin were almost completely destroyed.[1]
1818 Sofia earthquake 1818042500001818-04-25 near Sofia 6.0 VII
1838 Vrancea earthquake 1838011100001838-01-11 Vrancea Mountains, Romania 7.5 VII Felt across much of the country, damage reported in northern Bulgaria.
1858 Sofia earthquake 1858093000001858-09-30 near Sofia 6.6 IX 9.0 70-80% of buildings in Sofia suffered damage. 4
1901 Black Sea earthquake 1901033100001901-03-31 off Cape Kaliakra 7.2 X 14.0 More than 1,200 houses destroyed. Quake generated a 4–5 m high tsunami that devastated coastal communities on both sides of the Bulgarian-Romanian border. 4 50+
1904 Kresna earthquakes 1904040400001904-04-04 near Krupnik 7.2 Ms [2] 11.0 One of the largest shallow 20th century earthquakes on land in the Balkans, preceded by a very powerful 7.1 foreshock. Felt as far away as Budapest, Hungary. 200+
1908 Gorna Oryahovitza earthquake 1908011000001908-01-10 near Gorna Oryahovitza 7.0 First quake locally measured via seismograph, after one was installed in Sofia in 1905.
1909 Gorna Oryahovitza earthquake 1909041400001909-04-14 near Gorna Oryahovitza 7.0
1913 Ruse earthquake 1913061400001913-06-14 southwest of Ruse 6.6[3] 15.0 37
1928 Chirpan–Plovdiv earthquakes 1928041400001928-04-14 near Chirpan 7.1 and 7.1[4] IX 10.0 Followed by a 7.1 aftershock at a depth of 15.0 km on April 18. More than 26,000 buildings were destroyed, another 21,000 were severely damaged. 107 500
1942 Razgrad earthquake 1942031700001942-03-17 near Razgrad 5.1 Large parts of the city were damaged.
1977 Vrancea earthquake 1977030400001977-03-04 Vrancea Mountains, Romania 7.2 VIII 94.0 Most casualties occurred in Svishtov when several apartment buildings collapsed.[5] Widely felt across the entire country, with minor damage reported as far south as Plovdiv. 120 165
1977 Velingrad earthquake 1977110300001977-11-03 near Velingrad 5.2[6] VI 6.0 Nearly 800 buildings were damaged across several counties.
1986 Strazhitsa earthquake 1986120700001986-12-07 near Strazhitsa 5.6[7] VII 20.5 80% of buildings in Strazhitsa were deemed 'uninhabitable' after the quake, with 150 being completely destroyed. The town was later rebuilt. 3 80
1990 Vrancea earthquakes 1990053000001990-05-30 Vrancea Mountains, Romania 6.7 V 89.0 Moderate damage in northeastern Bulgaria. Main event was followed by a 6.1 aftershock on May 31. 1
2004 Vrancea earthquake 2004102700002004-10-27 Vrancea Mountains, Romania 6.0 V Felt across the country, some damage reported in northeastern Bulgaria.
2012 Pernik earthquake 2012052700002012-05-22 near Pernik 5.6[8] VI 10.0 Caused at least €11,000,000 worth of damage, mostly in Pernik, and to a lesser degree in the capital Sofia. 1
2014 Aegean Sea earthquake 2014052400002014-05-24 Aegean Sea 6.9 V 6.4 Widely felt across southern Bulgaria, minor damage reported in areas close to the Greek border.
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  •  
    Bent rails after the 1928 Chirpan earthquake
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    King Boris III of Bulgaria meeting with people from Plovdiv in the aftermath of the 1928 quake
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    The Catholic Hospital in Plovdiv after the 1928 quake
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    One of the three towers of the Republika Power Plant in Pernik collapsed after the 2012 earthquake
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    USGS seismic hazard map showing Bulgaria, as well as the Vrancea Mountains fault in central Romania
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    Bulgarian Academy of Sciences seismic hazard map showing maximum acceleration for a repeat period of 475 years

See also

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References

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  1. ^ Popescu, I. G. (May–June 1941). Étude comparative sur quelques tremblements de terre de Roumanie, du type du celui du 10 novembre 1940 (in French). Bucharest: Cartea Romaneasca.
  2. ^ Ambraseys, N. (2001). "The Kresna earthquake of 1904 in Bulgaria". Annals of Geophysics. 44 (1): 102. doi:10.4401/ag-3614.
  3. ^ "M 6.6 - Bulgaria". United States Geological Survey. March 4, 2018. Retrieved March 4, 2018.
  4. ^ "M 7.1 - Bulgaria". United States Geological Survey. March 4, 2018. Retrieved March 4, 2018.
  5. ^ "Svishtov commemorates memory of 1977 earthquake victims". bnr.bg. Retrieved 2024-10-29.
  6. ^ "M 5.2 - Bulgaria". United States Geological Survey. March 4, 2018. Retrieved March 4, 2018.
  7. ^ "M 5.6 - Bulgaria". United States Geological Survey. March 4, 2018. Retrieved March 4, 2018.
  8. ^ "M 5.6 - Bulgaria". United States Geological Survey. March 4, 2018. Retrieved March 4, 2018.
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