MANILA: A 7.0-magnitude earthquake struck off the southern Philippines Thursday, the US Geological Survey said, but there were no immediate reports of damage and a tsunami warning was not issued.

The quake hit about 310 kilometres (193 miles) southeast of Davao city on the main southern island of Mindanao at a depth of 95 kilometres at 8:23 pm local time (1223 GMT), according to USGS.

Residents in the town of Jose Abad Santos, near the southern tip of the island, lost electricity for about 15 minutes after the quake shook the region but there was no damage, police chief Captain Glabynarry Murillo told AFP.