QuakeScout
Magnitude3.3

Reviewed by USGSGreece22y ago

M3.3 earthquake 83 km WSW of Filiatrá, Greece

Thursday, July 15, 2004, 01:18:16 UTC · 36.880°N, 20.710°E

A magnitude 3.3 earthquake struck 83 km WSW of Filiatrá, Greece on Thursday, July 15, 2004, 01:18:16 UTC, at a depth of 24.0 km (shallow).

Magnitude
3.3
Minor · md
Depth
24 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

1 tons of TNT

That is about 1/11,203 of the Hiroshima bomb. A magnitude 5.0 releases about 355 times more energy.

Tectonic setting

20 km

from the nearest mapped plate boundary, between the Aegean Sea and African plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.

Depth: shallow

24 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 has not published any M2.5+ earthquake within 50 km in the 30 days after this event.

Regional history

Past M5+ earthquakes within 300 km

USGS lists 393 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:

  1. 7.9Southern GreeceAugust 11, 1903 · 227 km SE of this epicenter
  2. 7.34 km WNW of Koróni, GreeceOctober 6, 1947 · 108 km E of this epicenter
  3. 7.026 km SW of Lixoúri, GreeceJanuary 17, 1983 · 134 km N of this epicenter
  4. 6.815 km ENE of Póros, GreeceAugust 12, 1953 · 146 km N of this epicenter
  5. 6.86 km SW of Galaxídhion, GreeceMarch 31, 1965 · 216 km NE of this epicenter
  6. 6.7Ionian SeaNovember 15, 1959 · 108 km N of this epicenter
  7. 6.75 km SW of Domvraína, GreeceFebruary 24, 1981 · 246 km NE of this epicenter
  8. 6.77 km NE of Anávra, GreeceApril 30, 1954 · 290 km NE of this epicenter

History · NOAA

Deadliest earthquakes in this area

NOAA’s significant-earthquake database lists 123 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 5,298 recorded deaths. The most severe:

  1. 1750

    Morea,Cerigo

    7 Jun 1750 · 218 km away · intensity X

    2,000 deaths

  2. 1953M7.2

    Lixouri-Argostoli (Kephallenia)

    12 Aug 1953 · 158 km away · intensity X

    476 deaths$100 million damagetsunami

  3. 1820M6.9

    Zakinthos (Zante)

    29 Dec 1820 · 108 km away · intensity X

    388 deathsSevere damage ($5–24M)tsunami

  4. 1886M6.8

    Triphylie (Peleponese), Philiatra

    27 Aug 1886 · 91 km away · intensity X

    326 deathsSevere damage ($5–24M)tsunami

  5. 1767M6.7

    Kefalonia

    11 Jul 1767 · 156 km away · intensity X

    303 deathsSevere damage ($5–24M)

  6. 1894M6.7

    Locride, Malesina-Martinon (Lokris)

    20 Apr 1894 · 291 km away · intensity X

    255 deathsSevere damage ($5–24M)

NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.

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