Reviewed by USGSBulgaria114y ago
M6.7 earthquake 5 km NNE of Lyaskovets, Bulgaria
Saturday, June 14, 1913, 09:33:28 UTC · 43.152°N, 25.759°E
A magnitude 6.7 earthquake struck 5 km NNE of Lyaskovets, Bulgaria on Saturday, June 14, 1913, 09:33:28 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M6.7 on September 13, 1912.
- Magnitude
- 6.7
- Strong · mw
- Depth
- 15 km
- Shallow
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- VII
- Very strong (ShakeMap)
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquakeColoured lines: estimated shaking intensity (USGS ShakeMap)
In context
How big was it, and why here?
Energy released
163 kilotons of TNT
That is about 11 times the Hiroshima bomb. It released about 343 times the energy of a magnitude 5.0.
Tectonic setting
288 km
from the nearest mapped plate boundary, between the Anatolian and Eurasian plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: shallow
15 km
Shallow earthquakes (under 70 km) produce the strongest surface shaking for their size, so they are the ones most likely to cause damage near the epicenter.
Did You Feel It?
Where it was felt
No “Did You Feel It?” reports have been published for this event yet. If you felt it, you can add your report on the USGS website.
I felt it — report to USGS ↗USGS PAGER estimate
Who was exposed to shaking
USGS publishes PAGER impact estimates for significant earthquakes, usually within an hour. No PAGER estimate is available for this event.
After the main event
Aftershocks within 100 km
USGS has not published any M2.5+ earthquake within 100 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 8 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.225 km SE of Malkara, TurkeyAugust 9, 1912 · 292 km SE of this epicenter
- 7.07 km SE of Stara Kresna, BulgariaApril 4, 1904 · 258 km SW of this epicenter
- 6.86 km W of Stara Kresna, BulgariaApril 4, 1904 · 264 km SW of this epicenter
- 6.730 km SW of Kumbağ, TurkeySeptember 13, 1912 · 299 km SE of this epicenter
- 6.115 km NE of Bobov Dol, BulgariaOctober 8, 1905 · 227 km W of this epicenter
- 6.111 km ENE of Elhovo, BulgariaFebruary 15, 1909 · 128 km SE of this epicenter
- 5.616 km E of Tekirdağ, TurkeyAugust 10, 1912 · 291 km SE of this epicenter
- 5.47 km W of Simitli, BulgariaFebruary 23, 1910 · 265 km SW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 18 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 2,851 recorded deaths. The most severe:
- 1912M7.2
Marmara Sea
9 Aug 1912 · 292 km away
2,800 deathsExtreme damage ($25M+)tsunami
- 1838M6.9
Carpathian Fold,Vrancea
23 Jan 1838 · 291 km away · intensity VIII
42 deathsModerate damage ($1–5M)tsunami
- 1901M7.2
Balchik
31 Mar 1901 · 224 km away · intensity X
4 deathsSevere damage ($5–24M)tsunami
- 1901M6.4
Balchik, Kavarna, Blatnitsa, Limanu
31 Mar 1901 · 240 km away · intensity VIII
4 deathsSevere damage ($5–24M)
- 1893M6.5
Samothraki
9 Feb 1893 · 296 km away · intensity X
1 deathModerate damage ($1–5M)tsunami
- 1904M7.8
Struma
4 Apr 1904 · 258 km away · intensity XI
Severe damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.