“The quake was felt all over the island, and it did cause concern because we are still feeling the aftershocks from the previous quake,” Crete's deputy regional governor, Yiannis Leondarakis, told Greece's state-run radio.
Witnesses said residents of the island’s largest city, Heraklion, went outdoors when the quake struck, while students at many schools on the island gathered outside their classrooms.
Hundreds of people from villages south of Heraklion remain homeless following a 5.8-magnitude quake that struck on Sept. 27. A man was killed while carrying out restoration work at a church that was damaged in the area. Residents whose homes were damaged were moved to hotels and tents set up by the army.
Seismologists said the quakes last month and on Tuesday took place along different fault lines.
Leondarakis said of Tuesday's earthquake: “Fortunately, there does not appear to be any serious damage despite the fact that it was a strong event and occurred at a shallow depth.”
The quake also shook nearby Greek islands to the east of Crete, including Karpathos, Kassos. Officials on Karpathos told The Associated Press they had received no reports of serious damage.
This version has been corrected to show the earlier earthquake took place two weeks and one day ago, not three weeks.
Suzan Fraser in Ankara, Turkey and Menelaos Hadjicostis in Nicosia, Cyprus contributed.