  Istanbul Athens  | |
| UTC time | 1956-07-09 03:11:45 |
|---|---|
| ISC event | 888445 |
| USGS-ANSS | ComCat |
| Local date | July 9, 1956 |
| Local time | 05:11:45 |
| Magnitude | 7.7 Mw |
| Depth | 20 km (12 mi) |
| Epicenter | 36°39′59″N 25°57′25″E / 36.6664°N 25.957°E |
| Areas affected | Greece, Santorini and Amorgos |
| Max. intensity | MMI IX (Violent) |
| Tsunami | 30 m (98 ft) |
| Casualties | 53 |
The 1956 Amorgos earthquake occurred at 03:11 UTC on July 9. It had a magnitude of 7.7 on the moment magnitude scale and a maximum perceived intensity of IX on the Mercalli intensity scale. The epicentre was to the south of the island of Amorgos, the easternmost island of the Cyclades in the Aegean Sea. There was significant damage on Amorgos and the neighbouring island of Santorini. It was the largest earthquake in Greece in the 20th century.[1] It was followed 13 minutes later by a magnitude 7.2 earthquake near Santorini. It triggered a major tsunami with a maximum run-up of 30 m. The combined effects of the earthquake shaking and the tsunami caused the deaths of 53 people with a further 100 injured.[2][3]
- ^ Papadimitriou E., Sourlas G. & Karakostas V. (2005). "Seismicity Variations in the Southern Aegean, Greece, Before and After the Large (M7.7) 1956 Amorgos Earthquake Due to Evolving Stress". Pure and Applied Geophysics. 162 (5): 783–804. Bibcode:2005PApGe.162..783P. doi:10.1007/s00024-004-2641-z. S2CID 140605036.
- ^ "Comments for the Significant Earthquake". National Centers for Environmental Information. Retrieved 22 February 2016.
- ^ Okal, EA (2009). "The 1956 earthquake and tsunami in Amorgos, Greece". Geophysical Journal International. 178 (3): 1533–1554. Bibcode:2009GeoJI.178.1533O. doi:10.1111/j.1365-246X.2009.04237.x.
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