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Very strong mag. 6.5 earthquake - 26 km northwest of Kefalonia Island, Greece, on Sunday, September 17, 1972 at 14:07 GMT

Very strong mag. 6.5 earthquake - 26 km northwest of Kefalonia Island, Greece, on Sunday, September 17, 1972 at 14:07 GMT Very strong mag. 6.5 earthquake - 26 km northwest of Kefalonia Island, Greece, on Sunday, September 17, 1972 at 14:07 GMT

Very strong magnitude 6.5 earthquake at 15 km depth

Earthquake details

Date & timeSep 17, 1972 14:07:14 UTC
Local time at epicenter
StatusConfirmed
Magnitude6.5
Depth15.0 km
Epicenter latitude / longitude38.347°N / 20.307°E (Ionian Sea, Greece)
Antipode38.347°S / 159.693°W
Shaking intensityVery strong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoVolos-Atalanti (229 km / 142 mi)
Nearby towns and cities20 km (12 mi) NW of Lixouri (pop: 3,750) | Show on map | Quakes nearby
32 km (20 mi) WNW of Samos (Kefallonia) (pop: 1,350) | Show on map | Quakes nearby
36 km (22 mi) W of Ithaki (pop: 1,840) | Show on map | Quakes nearby
64 km (40 mi) SSW of Lefkada (pop: 8,670) | Show on map | Quakes nearby
78 km (48 mi) SSW of Preveza (Préveza) (pop: 17,300) | Show on map | Quakes nearby
81 km (51 mi) NW of Zakynthos (pop: 11,500) | Show on map | Quakes nearby
101 km (62 mi) WSW of Agrinio (pop: 46,900) | Show on map | Quakes nearby
125 km (78 mi) W of Patras (pop: 168,000) | Show on map | Quakes nearby
154 km (96 mi) SSW of Ioannina (pop: 65,600) | Show on map | Quakes nearby
302 km (188 mi) W of Athens (pop: 664,000) | Show on map | Quakes nearby
Estimated seismic energy released3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 atomic bombs!) | about seismic energy
Show interactive Map
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
6.515 kmGreeceUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Aftershocks

[More info]

Recorded aftershocks, latest first (13 quakes)

Date and timeMag
Depth
LocationDetails
Mar 10, 1973 09:35
50 years ago
3.1

33 km
37 km W of Agrinio, Aitoloakarnania, Western GreeceMore
Mar 5, 1973 15:40
50 years ago
3.7

32 km
50 km SW of Preveza, Nomos Prevézis, Epirus, GreeceMore
Feb 25, 1973 12:55
50 years ago
3.5

43 km
Nisida Voïdi, Ionian Islands, 35 km W of Amaliada, Western GreeceMore
Feb 21, 1973 01:14
50 years ago
4.1

33 km
31 km W of Argostoli, Kefallonia Regional Unit, Ionian Islands, GreeceMore
Feb 15, 1973 21:25
50 years ago
4.3

33 km
24 km NW of Argostoli, Kefallonia Regional Unit, Ionian Islands, GreeceMore
Feb 8, 1973 16:44
50 years ago
4.6

33 km
42 km W of Kefalonia Island, Kefallonia Regional Unit, Ionian Islands, GreeceMore
Feb 8, 1973 11:57
50 years ago
4.5

17 km
54 km W of Kefalonia Island, Kefallonia Regional Unit, Ionian Islands, GreeceMore
Feb 8, 1973 09:25
50 years ago
4.1

53 km
21 km NW of Argostoli, Kefallonia Regional Unit, Ionian Islands, GreeceMore
Feb 8, 1973 03:37
50 years ago
4.2

32 km
17 km NW of Argostoli, Kefallonia Regional Unit, Ionian Islands, GreeceMore
Feb 7, 1973 09:32
50 years ago
3.5

22 km
Nisida Agkynara, 49 km W of Patras, Achaea, Western GreeceMore
Jan 29, 1973 06:02
50 years ago
4.3

33 km
54 km W of Argostoli, Kefallonia Regional Unit, Ionian Islands, GreeceMore
Jan 28, 1973 20:35
50 years ago
4.3

33 km
91 km W of Kefalonia Island, Kefallonia Regional Unit, Ionian Islands, GreeceMore
Jan 2, 1973 01:50
50 years ago
4.3

33 km
29 km W of Argostoli, Kefallonia Regional Unit, Ionian Islands, GreeceMore

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