A mine believed to date from the first World War was adrift in the Dardanelles Strait after yesterday's powerful earthquake.
A Turkish coastguard vessel and a minesweeper were sent to the Dardanelles to keep a watch on the mine, thought to have been dislodged by the tremor, which measured 6.7 on the Richter scale, the report said.
Officials were warning passing ships to navigate carefully and avoid the mine, whose drift was changing direction with the waterway's currents.
Turkish reports said that the explosive device, identified as Turkish-made, would probably be destroyed at sea.
The Dardanelles Strait was the scene of bitter clashes between the Allied forces and Turkey's Ottoman empire during the first World War.
Some 8,700 men from Australia, 2,700 men from New Zealand and more than 21,000 British soldiers from Britain were killed as the Australia New Zealand Army Corps (Anzac) tried to land at Gallipoli in 1915.