Another tsunami warning for Indonesia

A 6.6-magnitude earthquake off the coast of Indonesia's Sulawesi island has sparked another tsunami alert for the country.

However, there have been no reports of tsunamis, with officials saying that the quake's depth of 71 kilometres rules out a repeat of last week's killer waves.

The tsunami warning is the third for Indonesia in a week.

On Monday, a 7.7-strength undersea quake triggered a tsunami that lashed the south coast of Java island, killing at least 596 people.

Two days later, a 6.2-magnitude quake sparked a tsunami warning for residents in west and south Sumatra.

- RADIO AUSTRALIA