Reviewed by USGSGreece23y ago
M3.1 earthquake 11 km W of Rodotópi, Greece
Friday, October 31, 2003, 02:27:04 UTC · 39.720°N, 20.590°E
A magnitude 3.1 earthquake struck 11 km W of Rodotópi, Greece on Friday, October 31, 2003, 02:27:04 UTC, at a depth of 10.0 km (shallow).
- Magnitude
- 3.1
- Minor · md
- 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 earthquakeDashed circle: 50 km aftershock search area
In context
How big was it, and why here?
Energy released
674 kg of TNT
That is about 1/22,353 of the Hiroshima bomb. A magnitude 5.0 releases about 708 times more energy.
Tectonic setting
139 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 50 km
USGS lists 1 M2.5+ earthquake within 50 km in the following 30 days; the largest was M3.3 on November 3, 2003. 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 529 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.026 km SW of Lixoúri, GreeceJanuary 17, 1983 · 191 km S of this epicenter
- 6.96 km E of Stari Bar, MontenegroApril 15, 1979 · 289 km NW of this epicenter
- 6.97 km NNE of Ágios Nikólaos, GreeceSeptember 26, 1932 · 276 km E of this epicenter
- 6.815 km ENE of Póros, GreeceAugust 12, 1953 · 174 km S of this epicenter
- 6.86 km SW of Galaxídhion, GreeceMarch 31, 1965 · 215 km SE of this epicenter
- 6.7Ionian SeaNovember 15, 1959 · 209 km S of this epicenter
- 6.76 km NW of Lukovo, North MacedoniaNovember 30, 1967 · 185 km N of this epicenter
- 6.75 km SW of Domvraína, GreeceFebruary 24, 1981 · 262 km SE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 174 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 7,417 recorded deaths. The most severe:
- 1851M6.6
Vlore (Valona),Berat; Turkey
12 Oct 1851 · 115 km away · intensity XI
2,000 deathsExtreme damage ($25M+)tsunami
- 1963M6.0
Macedonia: Skopje
26 Jul 1963 · 271 km away · intensity X
1,070 deaths$1.0 billion damage
- 1953M7.2
Lixouri-Argostoli (Kephallenia)
12 Aug 1953 · 159 km away · intensity X
476 deaths$100 million damagetsunami
- 1851
Berat
17 Oct 1851 · 115 km away · intensity X
400 deathsSevere damage ($5–24M)
- 1820M6.9
Zakinthos (Zante)
29 Dec 1820 · 226 km away · intensity X
388 deathsSevere damage ($5–24M)tsunami
- 1767M6.7
Kefalonia
11 Jul 1767 · 162 km away · intensity X
303 deathsSevere damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.