Reviewed by USGSGreece22y ago
M3.2 earthquake 1 km E of Antirrio, Greece
Saturday, November 13, 2004, 15:19:54 UTC · 38.330°N, 21.780°E
A magnitude 3.2 earthquake struck 1 km E of Antirrio, Greece on Saturday, November 13, 2004, 15:19:54 UTC, at a depth of 21.0 km (shallow).
- Magnitude
- 3.2
- Minor · ml
- Depth
- 21 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
951 kg of TNT
That is about 1/15,825 of the Hiroshima bomb. A magnitude 5.0 releases about 501 times more energy.
Tectonic setting
8 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
21 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 7 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M3.4 on December 5, 2004. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
- 3.22 km NE of Ovriá, Greece22y ago · 15 km S of this epicenter
- 3.25 km ESE of Paravóla, Greece22y ago · 34 km NW of this epicenter
- 3.43 km S of Náfpaktos, Greece22y ago · 5 km NE of this epicenter
- 3.011 km W of Galaxídhion, Greece22y ago · 41 km E of this epicenter
- 3.12 km ENE of Náfpaktos, Greece22y ago · 10 km NE of this epicenter
- 3.0Greece22y ago · 16 km E of this epicenter
- 2.97 km NNE of Káto Achaḯa, Greece22y ago · 22 km SW of this epicenter
Regional history
Past M5+ earthquakes within 300 km
USGS lists 539 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.9Southern GreeceAugust 11, 1903 · 281 km SE of this epicenter
- 7.34 km WNW of Koróni, GreeceOctober 6, 1947 · 170 km S of this epicenter
- 7.026 km SW of Lixoúri, GreeceJanuary 17, 1983 · 140 km W of this epicenter
- 7.055 km S of Mýrina, GreeceFebruary 19, 1968 · 300 km NE of this epicenter
- 6.97 km NNE of Ágios Nikólaos, GreeceSeptember 26, 1932 · 277 km NE of this epicenter
- 6.815 km ENE of Póros, GreeceAugust 12, 1953 · 75 km W of this epicenter
- 6.86 km SW of Galaxídhion, GreeceMarch 31, 1965 · 48 km E of this epicenter
- 6.828 km SSE of Karyes, GreeceJanuary 18, 1982 · 287 km NE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 167 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 8,312 recorded deaths. The most severe:
- 1851M6.6
Vlore (Valona),Berat; Turkey
12 Oct 1851 · 300 km away · intensity XI
2,000 deathsExtreme damage ($25M+)tsunami
- 1750
Morea,Cerigo
7 Jun 1750 · 260 km away · intensity X
2,000 deaths
- 1953M7.2
Lixouri-Argostoli (Kephallenia)
12 Aug 1953 · 86 km away · intensity X
476 deaths$100 million damagetsunami
- 1851
Berat
17 Oct 1851 · 300 km away · intensity X
400 deathsSevere damage ($5–24M)
- 1820M6.9
Zakinthos (Zante)
29 Dec 1820 · 79 km away · intensity X
388 deathsSevere damage ($5–24M)tsunami
- 1886M6.8
Triphylie (Peleponese), Philiatra
27 Aug 1886 · 137 km away · intensity X
326 deathsSevere damage ($5–24M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.