Hazardous tsunami waves are possible on parts of the coasts of the Philippines and Indonesia after an earthquake of 6.9 magnitude hit the southern Philippines.

There are no immediate reports of casualties or damage from the earthquake on Saturday centred off the southern Philippine island of Mindanao.

It hit 193 km east of the Philippine city of General Santos, at a depth of 60 km, the US Geological Survey said.

“Hazardous tsunami waves from this earthquake are possible within 300 km of the epicentre along the coasts of Indonesia and the Philippines,” the Pacific Tsunami Warning Center said.

There was no tsunami threat to the US state of Hawaii, it said.

The USGS initially said the magnitude of the quake was 7.2 but later downgraded it to 6.9.

-AAP