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

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

Very strong magnitude 6.5 earthquake at 15 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: 17 Sep 1972 14:07:14 UTC
Magnitude: 6.5
Depth: 15.0 km
Epicenter latitude / longitude: 38.347°N / 20.307°E (Ionian Sea, Greece)
Nearest volcano: Volos-Atalanti (229 km / 142 mi)
Nearby towns and cities:
15 km (9 mi) NNW of Kaminarata (pop: 239) --> See nearby quakes!
24 km (15 mi) NW of Argostoli (pop: 9,820) --> See nearby quakes!
32 km (20 mi) WNW of Samos (Kefallonia) (pop: 1,350) --> See nearby quakes!
36 km (22 mi) W of Ithaki (pop: 1,840) --> See nearby quakes!
64 km (40 mi) SSW of Lefkada (pop: 8,670) --> See nearby quakes!
78 km (48 mi) SSW of Preveza (Préveza) (pop: 17,300) --> See nearby quakes!
81 km (51 mi) NW of Zakynthos (pop: 11,500) --> See nearby quakes!
101 km (62 mi) WSW of Agrinio (pop: 46,900) --> See nearby quakes!
125 km (78 mi) W of Patras (pop: 168,000) --> See nearby quakes!
302 km (188 mi) W of Athens (pop: 664,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 atomic bombs!) More info
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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 yet. If you felt it be the first to report it!
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Aftershocks

More info
Recorded aftershocks, latest first (11 quakes):
  • 10 Mar 1973 09:35 UTC
    | M 3.1 |
    33 km (20.5 mi) depth
    |
    75 km (47 mi) distance
    | USGS | Details
  • 05 Mar 1973 15:40 UTC
    | M 3.7 |
    32 km (19.9 mi) depth
    |
    46 km (29 mi) distance
    | USGS | Details
  • 21 Feb 1973 01:14 UTC
    | M 4.1 |
    33 km (20.5 mi) depth
    |
    18 km (11 mi) distance
    | USGS | Details
  • 15 Feb 1973 21:25 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    4 km (2 mi) distance
    | USGS | Details
  • 08 Feb 1973 16:44 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    16 km (10 mi) distance
    | USGS | Details
  • 08 Feb 1973 11:57 UTC
    | M 4.5 |
    17 km (10.6 mi) depth
    |
    27 km (17 mi) distance
    | USGS | Details
  • 08 Feb 1973 09:25 UTC
    | M 4.1 |
    53 km (32.9 mi) depth
    |
    11 km (7 mi) distance
    | USGS | Details
  • 08 Feb 1973 03:37 UTC
    | M 4.2 |
    32 km (19.9 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details
  • 29 Jan 1973 06:02 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 28 Jan 1973 20:35 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    69 km (43 mi) distance
    | USGS | Details
  • 02 Jan 1973 01:50 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    19 km (12 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

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