Reviewed by USGSGreece45y ago
M3.6 earthquake 27 km SSE of Skýros, Greece
Sunday, April 25, 1982, 09:09:54 UTC · 38.671°N, 24.679°E
A magnitude 3.6 earthquake struck 27 km SSE of Skýros, Greece on Sunday, April 25, 1982, 09:09:54 UTC, at a depth of 16.4 km (shallow).
- Magnitude
- 3.6
- Minor · ml
- Depth
- 16 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
4 tons of TNT
That is about 1/3,975 of the Hiroshima bomb. A magnitude 5.0 releases about 126 times more energy.
Tectonic setting
126 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
16 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 2 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M3.4 on May 21, 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 300 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.719 km SSE of Amorgós, GreeceJuly 9, 1956 · 250 km SE of this epicenter
- 7.2Aegean SeaNovember 8, 1905 · 158 km N of this epicenter
- 7.261 km W of Eresós, GreeceDecember 19, 1981 · 79 km NE of this epicenter
- 7.29 km NNW of Karaburun, TurkeyJuly 23, 1949 · 156 km E of this epicenter
- 7.03 km ESE of Soma, TurkeyNovember 18, 1919 · 263 km E of this epicenter
- 7.05 km NNW of Kéfalos, GreeceJune 26, 1926 · 288 km SE of this epicenter
- 7.055 km S of Mýrina, GreeceFebruary 19, 1968 · 83 km N of this epicenter
- 6.97 km NNE of Ágios Nikólaos, GreeceSeptember 26, 1932 · 199 km NW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 109 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 24,992 recorded deaths. The most severe:
- 1883M7.3
Ayvalik, Izmir, Cesme
15 Oct 1883 · 139 km away · intensity X
15,000 deathsExtreme damage ($25M+)
- 1881M7.3
Khios; Turkey: Cesme
3 Apr 1881 · 145 km away · intensity XI
7,866 deathsExtreme damage ($25M+)tsunami
- 1867M7.0
Mitilini; Turkey: Izmir
7 Mar 1867 · 160 km away
563 deathsSevere damage ($5–24M)tsunami
- 1894M6.7
Locride, Malesina-Martinon (Lokris)
20 Apr 1894 · 129 km away · intensity X
255 deathsSevere damage ($5–24M)
- 1928M6.5
Tepekoy, Torbali
31 Mar 1928 · 246 km away · intensity IX
170 deathsExtreme damage ($25M+)tsunami
- 1932M6.9
Hierissos-Strantonion (Chalkidiki)
26 Sep 1932 · 214 km away · intensity X
161 deathsExtreme damage ($25M+)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.