Reviewed by USGSGreece45y ago
M3.4 earthquake 43 km SSE of Pefkochóri, Greece
Saturday, March 13, 1982, 11:21:11 UTC · 39.615°N, 23.774°E
A magnitude 3.4 earthquake struck 43 km SSE of Pefkochóri, Greece on Saturday, March 13, 1982, 11:21:11 UTC, at a depth of 14.2 km (shallow).
- Magnitude
- 3.4
- Minor · ml
- Depth
- 14 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 earthquakeDashed circle: 50 km aftershock search area
In context
How big was it, and why here?
Energy released
2 tons of TNT
That is about 1/7,931 of the Hiroshima bomb. A magnitude 5.0 releases about 251 times more energy.
Tectonic setting
5 km
from the nearest mapped plate boundary, between the Aegean Sea and Eurasian plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
14 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 50 km
USGS lists 1 M2.5+ earthquake within 50 km in the following 30 days; the largest was M3.4 on March 13, 1982. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 327 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.2Aegean SeaNovember 8, 1905 · 90 km NE of this epicenter
- 7.261 km W of Eresós, GreeceDecember 19, 1981 · 131 km E of this epicenter
- 7.29 km NNW of Karaburun, TurkeyJuly 23, 1949 · 254 km E of this epicenter
- 7.07 km SE of Stara Kresna, BulgariaApril 4, 1904 · 242 km N of this epicenter
- 7.055 km S of Mýrina, GreeceFebruary 19, 1968 · 106 km E of this epicenter
- 6.97 km NNE of Ágios Nikólaos, GreeceSeptember 26, 1932 · 77 km N of this epicenter
- 6.86 km W of Stara Kresna, BulgariaApril 4, 1904 · 250 km N of this epicenter
- 6.815 km ENE of Póros, GreeceAugust 12, 1953 · 292 km SW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 129 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 25,586 recorded deaths. The most severe:
- 1883M7.3
Ayvalik, Izmir, Cesme
15 Oct 1883 · 256 km away · intensity X
15,000 deathsExtreme damage ($25M+)
- 1881M7.3
Khios; Turkey: Cesme
3 Apr 1881 · 262 km away · intensity XI
7,866 deathsExtreme damage ($25M+)tsunami
- 1867M7.0
Mitilini; Turkey: Izmir
7 Mar 1867 · 230 km away
563 deathsSevere damage ($5–24M)tsunami
- 1953M7.2
Lixouri-Argostoli (Kephallenia)
12 Aug 1953 · 296 km away · intensity X
476 deaths$100 million damagetsunami
- 1894M6.7
Locride, Malesina-Martinon (Lokris)
20 Apr 1894 · 123 km away · intensity X
255 deathsSevere damage ($5–24M)
- 1932M6.9
Hierissos-Strantonion (Chalkidiki)
26 Sep 1932 · 99 km away · intensity X
161 deathsExtreme damage ($25M+)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.