Moderate mag. 5.4 earthquake - 27 km southeast of Patras, Achaea, Grece-Occidentale, Greece, on Friday, April 4, 1975 at 05:16 (GMT)
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Moderate magnitude 5.4 earthquake at 53 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 53.0 km
Epicenter latitude / longitude: 38.093°N / 21.98°E (Achaea, Grece-Occidentale, Greece)
Antipode: 38.093°S / 158.02°W
Nearest volcano: Sousaki (99 km / 62 mi)
Nearby towns and cities:
19 km (12 mi) SSW of Aigio (West Greece) (pop: 20,400) --> See nearby quakes!
27 km (17 mi) SE of Patras (West Greece) (pop: 168,000) --> See nearby quakes!
36 km (22 mi) SSE of Nafpaktos (West Greece) (pop: 13,400) --> See nearby quakes!
64 km (40 mi) ENE of Amaliada (West Greece) (pop: 16,800) --> See nearby quakes!
66 km (41 mi) NE of Pyrgos (Pirgos, West Greece) (pop: 22,400) --> See nearby quakes!
77 km (48 mi) SE of Agrinio (West Greece) (pop: 46,900) --> See nearby quakes!
84 km (52 mi) NW of Argos (Peloponnese) (pop: 22,200) --> See nearby quakes!
87 km (54 mi) W of Corinto (Peloponnese) (pop: 30,200) --> See nearby quakes!
98 km (61 mi) SSW of Lamia (Central Greece) (pop: 52,000) --> See nearby quakes!
154 km (95 mi) W of Athens (Attica) (pop: 664,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) | about seismic energy
Data for the same earthquake reported by different agencies
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User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Recorded aftershocks, latest first (0 quake)
So far, no aftershocks have been registered.