Reviewed by USGSGreece108y ago
M6.1 earthquake 24 km SSW of Nestório, Greece
Monday, December 22, 1919, 23:41:04 UTC · 40.208°N, 20.961°E
A magnitude 6.1 earthquake struck 24 km SSW of Nestório, Greece on Monday, December 22, 1919, 23:41:04 UTC, at a depth of 10.0 km (shallow). It is the strongest earthquake within 300 km since an M6.3 on August 10, 1915.
- Magnitude
- 6.1
- Strong · mw
- Depth
- 10 km
- Shallow
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- —
- No ShakeMap
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquake
In context
How big was it, and why here?
Energy released
21 kilotons of TNT
That is about the energy of the Hiroshima bomb. It released about 45 times the energy of a magnitude 5.0.
Tectonic setting
194 km
from the nearest mapped plate boundary, between the Aegean Sea and Eurasian plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: shallow
10 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 51 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.07 km SE of Stara Kresna, BulgariaApril 4, 1904 · 258 km NE of this epicenter
- 6.86 km W of Stara Kresna, BulgariaApril 4, 1904 · 253 km NE of this epicenter
- 6.617 km NNW of Bilisht, AlbaniaFebruary 18, 1911 · 62 km N of this epicenter
- 6.59 km E of Stari Bar, MontenegroJune 1, 1905 · 254 km NW of this epicenter
- 6.56 km N of Tríkeri, GreeceJanuary 20, 1905 · 216 km SE of this epicenter
- 6.532 km NNW of Lixoúri, GreeceAugust 7, 1915 · 198 km S of this epicenter
- 6.521 km SW of Lixoúri, GreeceJanuary 27, 1915 · 246 km S of this epicenter
- 6.411 km W of Kyllíni, GreeceJanuary 24, 1912 · 254 km S of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 92 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 4,789 recorded deaths. The most severe:
- 1851M6.6
Vlore (Valona),Berat; Turkey
12 Oct 1851 · 112 km away · intensity XI
2,000 deathsExtreme damage ($25M+)tsunami
- 1851
Berat
17 Oct 1851 · 112 km away · intensity X
400 deathsSevere damage ($5–24M)
- 1820M6.9
Zakinthos (Zante)
29 Dec 1820 · 274 km away · intensity X
388 deathsSevere damage ($5–24M)tsunami
- 1767M6.7
Kefalonia
11 Jul 1767 · 220 km away · intensity X
303 deathsSevere damage ($5–24M)
- 1894M6.7
Locride, Malesina-Martinon (Lokris)
20 Apr 1894 · 263 km away · intensity X
255 deathsSevere damage ($5–24M)
- 1867M7.2
Cephalonia
4 Feb 1867 · 224 km away · intensity X
223 deathsSevere damage ($5–24M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.