By DPA,
Athens : A strong earthquake measuring 6.6 on the Richter scale shook north-eastern Greece early Tuesday, but there were no reports of injuries or damage.
The underwater quake took place at 5:06 a.m. and had an epicentre northeast of Athens near Halkida and the island of Evia.
Two smaller earthquakes took place a few minutes later.
The earthquake startled people in Athens.
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