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Very strong mag. 6.4 earthquake - 97 km west of Pyrgos, Ilia Prefecture, Western Greece, on Tuesday, May 11, 1976 at 16:59 GMT

Very strong mag. 6.4 earthquake - 97 km west of Pyrgos, Ilia Prefecture, Western Greece, on Tuesday, May 11, 1976 at 16:59 GMT Very strong mag. 6.4 earthquake - 97 km west of Pyrgos, Ilia Prefecture, Western Greece, on Tuesday, May 11, 1976 at 16:59 GMT

Very strong magnitude 6.4 earthquake at 33 km depth

Earthquake details

Date & timeMay 11, 1976 16:59:48 UTC
Local time at epicenter
StatusConfirmed
Magnitude6.4
Depth33.0 km
Epicenter latitude / longitude37.56°N / 20.352°E (Ionian Sea, Greece)
Antipode37.56°S / 159.648°W
Shaking intensityStrong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoSousaki (245 km / 152 mi)
Nearby towns and cities42 km (26 mi) WSW of Keri (pop: 469) | Show on map | Quakes nearby
47 km (29 mi) SW of Katastari (pop: 1,380) | Show on map | Quakes nearby
54 km (33 mi) WSW of Zakynthos (pop: 11,500) | Show on map | Quakes nearby
70 km (44 mi) S of Argostoli (pop: 9,820) | Show on map | Quakes nearby
85 km (53 mi) WSW of Gastouni (pop: 8,110) | Show on map | Quakes nearby
92 km (57 mi) WSW of Amaliada (pop: 16,800) | Show on map | Quakes nearby
97 km (60 mi) W of Pyrgos (Pirgos) (pop: 22,400) | Show on map | Quakes nearby
143 km (89 mi) WSW of Patras (pop: 168,000) | Show on map | Quakes nearby
150 km (93 mi) SW of Agrinio (pop: 46,900) | Show on map | Quakes nearby
301 km (187 mi) W of Athens (pop: 664,000) | Show on map | Quakes nearby
Estimated seismic energy released2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) | about seismic energy
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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
6.433 kmIonian Sea (Greece)USGS
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 (31 quakes)

Date and timeMag
Depth
LocationDetails
Oct 30, 1976 01:37
46 years ago
3.6

6 km
42 km SW of Argostoli, Kefallonia Regional Unit, Ionian Islands, GreeceMore
Oct 28, 1976 03:53
46 years ago
3.3

6 km
5.4 km NW of Pyrgos, Ilia Prefecture, Western GreeceMore
Oct 8, 1976 01:12
46 years ago
3.7

33 km
65 km W of Zakynthos, Ionian Islands, GreeceMore
Oct 2, 1976 12:45
46 years ago
4.4

68 km
65 km S of Pyrgos, Ilia Prefecture, Western GreeceMore
Sep 30, 1976 06:37
46 years ago
3.3

24 km
110 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
Sep 30, 1976 00:33
46 years ago
4.9

43 km
96 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
Aug 23, 1976 03:15
46 years ago
4.5

52 km
Ithaca, 68 km S of Preveza, Nomos Prevézis, Epirus, GreeceMore
Aug 22, 1976 17:18
46 years ago
4.4

63 km
83 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
Jul 13, 1976 20:37
47 years ago
4.4

49 km
90 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
Jul 8, 1976 15:20
47 years ago
4.5

49 km
65 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
Jun 20, 1976 02:47
47 years ago
3.9

68 km
Vrachonisida Agios Ioannis, 22 km W of Zakynthos, Ionian Islands, GreeceMore
Jun 15, 1976 12:46
47 years ago
4.5

41 km
80 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
Jun 13, 1976 00:20
47 years ago
4.4

48 km
76 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
Jun 12, 1976 10:25
47 years ago
4.1

33 km
54 km SW of Patras, Achaea, Western GreeceMore
Jun 12, 1976 04:54
47 years ago
4.6

43 km
94 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
Jun 12, 1976 02:41
47 years ago
4.3

38 km
84 km SW of Pyrgos, Ilia Prefecture, Western GreeceMore
Jun 12, 1976 00:59
47 years ago
5.5

8 km
80 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
Jun 8, 1976 18:33
47 years ago
3.7

21 km
156 km SW of Pyrgos, Ilia Prefecture, Western GreeceMore
Jun 6, 1976 14:43
47 years ago
4.0

47 km
186 km SW of Patras, Achaea, Western GreeceMore
Jun 4, 1976 06:28
47 years ago
3.9

33 km
74 km SW of Pyrgos, Ilia Prefecture, Western GreeceMore
May 30, 1976 16:26
47 years ago
4.2

33 km
76 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
May 30, 1976 13:45
47 years ago
3.6

36 km
52 km SW of Pyrgos, Ilia Prefecture, Western GreeceMore
May 29, 1976 22:05
47 years ago
3.3

33 km
97 km SW of Pyrgos, Ilia Prefecture, Western GreeceMore
May 29, 1976 21:56
47 years ago
3.5

33 km
84 km SW of Pyrgos, Ilia Prefecture, Western GreeceMore
May 29, 1976 10:21
47 years ago
3.0

15 km
47 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
May 18, 1976 16:15
47 years ago
3.6

33 km
115 km SW of Kefalonia Island, Kefallonia Regional Unit, Ionian Islands, GreeceMore
May 16, 1976 16:43
47 years ago
2.8

24 km
84 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
May 13, 1976 22:18
47 years ago
4.1

52 km
87 km SW of Pyrgos, Ilia Prefecture, Western GreeceMore
May 13, 1976 14:47
47 years ago
3.3

33 km
113 km W of Pyrgos, Ilia Prefecture, Western GreeceMore
May 11, 1976 21:12
47 years ago
3.8

33 km
90 km SW of Kefalonia Island, Kefallonia Regional Unit, Ionian Islands, GreeceMore
May 11, 1976 17:10
47 years ago
5.3

20 km
95 km SW of Pyrgos, Ilia Prefecture, Western GreeceMore

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