The European Earthquake Monitoring Centre recorded the quake's epicentre at 22 km northwest of the Greek capital city.
Reuters reported that people were running from buildings in panic while high rise towers had been evacuated.
This is believed to be the first earthquake to hit Athens since the deadly one in 1999 - which left 143 people dead, 700 injured and 70,000 buildings damaged.
There were no immediate reports of injuries or damage and reports say the tremors did not last long.
Race to reach trapped survivors offers hope in Colombia quake zone
Rescuers raced in Colombia on Friday to free four people from a collapsed hotel, a rare sign of hope nearly four days after one of the strongest earthquakes to hit the Andean nation in decades left hundreds dead or missing.
France's top court blocks social media ban for under-15s
France's top court on Friday blocked a bill banning social media access for under-15s, saying it infringed upon freedom of expression and delivering a setback for President Emmanuel Macron, who asked his government to rewrite the legislation.
Japan's record rains strand thousands at Narita airport; kill eight
Record rainfall in Japan stranded thousands of travellers at Tokyo's Narita airport on Friday, bringing floods to the surrounding area that disrupted transport, knocked out power to 20,000 homes and killed eight.
Wildfires in Britain hit record levels after homes burn in intense heat
Wildfires in England and Wales have hit a record level, fire chiefs said on Friday, warning that rescue services were battling to keep up with rising risks a day after fires raced from tinder-dry fields to engulf houses on the hottest day of the year.
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