Very strong mag. 6.7 earthquake - Nomos Voiotias, Central Greece, 74 km west of Athens, Athena, Attica, Greece, on Tuesday, February 24, 1981 at 20:53 (GMT)

Very strong mag. 6.7 earthquake - Nomos Voiotias, Central Greece, 74 km west of Athens, Athena, Attica, Greece, on Tuesday, February 24, 1981 at 20:53 (GMT)

Very strong magnitude 6.7 earthquake at 33 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Feb 24, 1981 20:53:38 UTC
Magnitude: 6.7
Depth: 33.0 km
Epicenter latitude / longitude: 38.222°N / 22.934°E (Nomos Voiotias, Central Greece, Greece)
Antipode: 38.222°S / 157.066°W
Nearest volcano: Sousaki (35 km / 22 mi)
Nearby towns and cities:
5 km (3 mi) SW of Domvraina (Voiotía) (pop: 1,140) --> See nearby quakes!
24 km (15 mi) SSE of Livadia (Levádhia) (pop: 21,500) --> See nearby quakes!
31 km (20 mi) N of Corinto (Peloponnese) (pop: 30,200) --> See nearby quakes!
36 km (22 mi) WSW of Thebes (pop: 22,000) --> See nearby quakes!
64 km (40 mi) WSW of Chalcis (pop: 59,100) --> See nearby quakes!
69 km (43 mi) WNW of Petroúpolis (pop: 59,000) --> See nearby quakes!
74 km (46 mi) WNW of Athens (Attica) (pop: 664,000) --> See nearby quakes!
87 km (54 mi) SSE of Lamia (pop: 52,000) --> See nearby quakes!
87 km (54 mi) SSE of Lamia (pop: 52,000) --> See nearby quakes!
105 km (65 mi) E of Patras (West Greece) (pop: 168,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 1014 joules (197 gigawatt hours, equivalent to 1.7 x 105 tons of TNT or 10.6 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
6.733 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.
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Aftershocks

More info

Recorded aftershocks, latest first (337 quakes)

  • 22 Aug 1981 22:23 UTC
    | M 2.8 |
    33 km (20.5 mi) depth
    |
    130 km (80 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    4855 km (3017 mi) distance
    | | Details
  • 22 Aug 1981 09:33 UTC
    | M 4.6 |
    17.7 km (11 mi) depth
    |
    131 km (81 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    4855 km (3017 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    4855 km (3017 mi) distance
    | | Details
  • 22 Aug 1981 00:26 UTC
    | M 3.1 |
    33 km (20.5 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 20 Aug 1981 23:45 UTC
    | M 2.9 |
    33 km (20.5 mi) depth
    |
    124 km (77 mi) distance
    | USGS | Details
  • 20 Aug 1981 21:21 UTC
    | M 3.2 |
    33 km (20.5 mi) depth
    |
    117 km (73 mi) distance
    | USGS | Details
  • 17 Aug 1981 00:44 UTC
    | M 3.3 |
    26.6 km (16.5 mi) depth
    |
    29 km (18 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    4855 km (3017 mi) distance
    | | Details
  • 15 Aug 1981 19:24 UTC
    | M 3.2 |
    33 km (20.5 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    4855 km (3017 mi) distance
    | | Details
  • 14 Aug 1981 21:44 UTC
    | M 3.6 |
    33 km (20.5 mi) depth
    |
    78 km (49 mi) distance
    | USGS | Details
  • 11 Aug 1981 17:25 UTC
    | M 3.9 |
    10 km (6.2 mi) depth
    |
    115 km (72 mi) distance
    | USGS | Details
  • 10 Aug 1981 22:21 UTC
    | M 3.0 |
    10.5 km (6.5 mi) depth
    |
    52 km (32 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    4855 km (3017 mi) distance
    | | Details
  • Show all

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