A 5.3 magnitude earthquake struck 23 kilometres northwest of Athens shortly after 2pm local time, followed by a second tremor that measured 4.2-4.4.

Earthquake specialists could not confirm that these two quakes were the main ones and people are concerned about whether a larger quake will follow with memories of the large earthquake of 7 September, 1999.
The initial quake lasted for around 15 seconds and was strong enough to cause people to run into the streets, and the tremor could also be felt inside Athens International Airport by holiday makers visiting Greece.
One pregnant tourist was slightly injured in Athens while sightseeing. And people and tourists gathered at Syntagma Square.

There have been no immediate reports of serious injuries or major damage, however local media reported that there were power cuts in central Athens as well as problems to telecommunications.