Very strong mag. 6.4 earthquake - Ionian Sea, 97 km west of Pýrgos, Ilia Prefecture, West Greece, on Tuesday, 11 May 1976 at 16:59 (GMT)
Very strong magnitude 6.4 earthquake at 33 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
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Date & time: 11 May 1976 16:59:48 UTC
Magnitude: 6.4
Depth: 33.0 km
Epicenter latitude / longitude: 37.56°N / 20.352°E
(
Ionian Sea,
Greece)
Nearest volcano:
Sousaki (245 km / 152 mi)
Nearby towns and cities:38 km (24 mi) SW of Kampi (pop: 59) -->
See nearby quakes!54 km (33 mi) WSW of Zakynthos (pop: 11,500) -->
See nearby quakes!70 km (44 mi) S of Argostoli (pop: 9,820) -->
See nearby quakes!74 km (46 mi) WSW of Arkoudi (pop: 1,310) -->
See nearby quakes!85 km (53 mi) WSW of Gastouni (pop: 8,110) -->
See nearby quakes!92 km (57 mi) WSW of Amaliada (pop: 16,800) -->
See nearby quakes!97 km (60 mi) W of Pýrgos (Pirgos) (pop: 22,400) -->
See nearby quakes!143 km (89 mi) WSW of Patras (pop: 168,000) -->
See nearby quakes!150 km (93 mi) SW of Agrinio (pop: 46,900) -->
See nearby quakes!301 km (187 mi) W of Athens (pop: 664,000) -->
See nearby quakes!
Primary data source:
USGS (United States Geological Survey)
Estimated released energy: 2.5 x 10
14 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!)
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Data for the same earthquake reported by different agencies
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| Mag. | Depth | Location | Source |
| 6.4 | 33 km | Ionian Sea (Greece) | USGS |
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Look up aftershocks or earlier quakes
Aftershocks
More info
Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. 251 km
2 (=97 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 27 km (17 mi).
Aftershocks typically occur during the weeks and months following the quake at or near the same fault, at distances of up to approx. two times the length of the rupture zone.
The often broadly linear arrangement of aftershock epicenters encompasses the rupture zone of the main shock (check on the
map below to verify).
30 Oct 1976 01:37 UTC
| M 3.6 | 6 km (3.7 mi) depth
| 56 km (35 mi) distance
| USGS | Details28 Oct 1976 03:53 UTC
| M 3.3 | 6 km (3.7 mi) depth
| 93 km (58 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details08 Oct 1976 01:12 UTC
| M 3.7 | 33 km (20.5 mi) depth
| 14 km (9 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details02 Oct 1976 12:45 UTC
| M 4.4 | 68 km (42.3 mi) depth
| 91 km (57 mi) distance
| USGS | Details30 Sep 1976 06:37 UTC
| M 3.3 | 24 km (14.9 mi) depth
| 14 km (9 mi) distance
| USGS | Details30 Sep 1976 00:33 UTC
| M 4.9 | 43 km (26.7 mi) depth
| 3 km (2 mi) distance
| USGS | Details23 Aug 1976 03:15 UTC
| M 4.5 | 52 km (32.3 mi) depth
| 92 km (57 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details22 Aug 1976 17:18 UTC
| M 4.4 | 63 km (39.1 mi) depth
| 24 km (15 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details13 Jul 1976 20:37 UTC
| M 4.4 | 49 km (30.4 mi) depth
| 22 km (14 mi) distance
| USGS | Details08 Jul 1976 15:20 UTC
| M 4.5 | 49 km (30.4 mi) depth
| 32 km (20 mi) distance
| USGS | Details20 Jun 1976 02:47 UTC
| M 3.9 | 68 km (42.3 mi) depth
| 34 km (21 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | DetailsShow all
01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details15 Jun 1976 12:46 UTC
| M 4.5 | 41 km (25.5 mi) depth
| 26 km (16 mi) distance
| USGS | Details13 Jun 1976 00:20 UTC
| M 4.4 | 48 km (29.8 mi) depth
| 24 km (15 mi) distance
| USGS | Details12 Jun 1976 10:25 UTC
| M 4.1 | 33 km (20.5 mi) depth
| 89 km (55 mi) distance
| USGS | Details12 Jun 1976 04:54 UTC
| M 4.6 | 43 km (26.7 mi) depth
| 20 km (12 mi) distance
| USGS | Details12 Jun 1976 02:41 UTC
| M 4.3 | 38 km (23.6 mi) depth
| 27 km (17 mi) distance
| USGS | Details12 Jun 1976 00:59 UTC
| M 5.5 | 8 km (5 mi) depth
| 18 km (11 mi) distance
| USGS | Details08 Jun 1976 18:33 UTC
| M 3.7 | 21 km (13 mi) depth
| 95 km (59 mi) distance
| USGS | Details06 Jun 1976 14:43 UTC
| M 4.0 | 47 km (29.2 mi) depth
| 62 km (38 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details04 Jun 1976 06:28 UTC
| M 3.9 | 33 km (20.5 mi) depth
| 59 km (37 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details30 May 1976 16:26 UTC
| M 4.2 | 33 km (20.5 mi) depth
| 28 km (17 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details30 May 1976 13:45 UTC
| M 3.6 | 36 km (22.4 mi) depth
| 51 km (32 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details29 May 1976 22:05 UTC
| M 3.3 | 33 km (20.5 mi) depth
| 28 km (17 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details29 May 1976 21:56 UTC
| M 3.5 | 33 km (20.5 mi) depth
| 45 km (28 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details29 May 1976 10:21 UTC
| M 3.0 | 15 km (9.3 mi) depth
| 53 km (33 mi) distance
| USGS | Details01 Jan 1970 00:00 UTC
| M | 0 km (0 mi) depth
| 4671 km (2902 mi) distance
| | Details18 May 1976 16:15 UTC
| M 3.6 | 33 km (20.5 mi) depth
| 39 km (24 mi) distance
| USGS | Details16 May 1976 16:43 UTC
| M 2.8 | 24 km (14.9 mi) depth
| 18 km (11 mi) distance
| USGS | Details13 May 1976 22:18 UTC
| M 4.1 | 52 km (32.3 mi) depth
| 27 km (16 mi) distance
| USGS | Details13 May 1976 14:47 UTC
| M 3.3 | 33 km (20.5 mi) depth
| 20 km (12 mi) distance
| USGS | Details11 May 1976 21:12 UTC
| M 3.8 | 33 km (20.5 mi) depth
| 19 km (12 mi) distance
| USGS | Details11 May 1976 17:10 UTC
| M 5.3 | 20 km (12.4 mi) depth
| 28 km (17 mi) distance
| USGS | Details
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