Reviewed by USGSGreece118y ago
M5.8 earthquake 32 km N of Agía Marína, Greece
Friday, February 18, 1910, 05:09:12 UTC · 35.809°N, 23.992°E
A magnitude 5.8 earthquake struck 32 km N of Agía Marína, Greece on Friday, February 18, 1910, 05:09:12 UTC, at a depth of 60.0 km (shallow). It is the strongest earthquake within 300 km since an M6.1 on May 17, 1908.
- Magnitude
- 5.8
- Moderate · mw
- Depth
- 60 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
9 kilotons of TNT
That is about 1/2 of the Hiroshima bomb. It released about 19 times the energy of a magnitude 5.0.
Tectonic setting
101 km
from the nearest mapped plate boundary, between the Aegean Sea and African plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: shallow
60 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 75 km
USGS has not published any M2.5+ earthquake within 75 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 7 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.9Southern GreeceAugust 11, 1903 · 92 km W of this epicenter
- 6.125 km NW of Kastrí, GreeceMay 17, 1908 · 92 km S of this epicenter
- 5.8155 km N of Al Qubbah, LibyaFebruary 2, 1907 · 244 km SW of this epicenter
- 5.59 km NNW of Amorgós, GreeceJune 23, 1908 · 207 km NE of this epicenter
- 5.511 km ESE of Kímolos, GreeceJune 23, 1908 · 124 km NE of this epicenter
- 5.520 km WSW of Mílos, GreeceJune 23, 1908 · 96 km N of this epicenter
- 5.358 km S of Tympáki, GreeceJune 17, 1906 · 152 km SE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 25 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 6,074 recorded deaths. The most severe:
- 1810
Crete: Iraklion (Candia)
16 Feb 1810 · 97 km away · intensity X
3,000 deathsSevere damage ($5–24M)tsunami
- 1750
Morea,Cerigo
7 Jun 1750 · 99 km away · intensity X
2,000 deaths
- 1856
Crete; Egypt
12 Oct 1856 · 185 km away · intensity XI
600 deathsSevere damage ($5–24M)tsunami
- 1886M6.8
Triphylie (Peleponese), Philiatra
27 Aug 1886 · 250 km away · intensity X
326 deathsSevere damage ($5–24M)tsunami
- 1791M7.0
Zante, Gastuni
2 Nov 1791 · 270 km away · intensity X
80 deathsSevere damage ($5–24M)tsunami
- 1846
Messini-Micromani (Messinia)
10 Jun 1846 · 222 km away · intensity X
30 deathsUnder $1 million damage
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.