The last tremor, centred in Himara, near the Ionian sea, some 130 kilometers (65 miles) south of Tirana, was registered at 4:10 am (0210 GMT), officials said.

There have been no reports on casualties or damage from the earthquakes, which were first registered on Monday in the south of Albania.

However, local media reported that many local and foreign tourists cut short their holidays because of fears of further earthquakes.

The center said new tremors might be expected in the coming days, but would not be as strong as the previous ones.