Mag 6.4 quake strikes Indonesia's Tenggara province

An earthquake of magnitude 6.4 has struck the Indonesia's East Nusa Tenggara province, the European-Mediterranean Seismological Centre (EMSC) says.

The Indonesian geological agency (BMKG) on Thursday pegged the magnitude at 6.3 with no tsunami potential.

The epicentre of the quake was onshore and at a depth of 25km, located 15km from the capital of East Nusa Tenggara province, Kupang.

It was strongly felt in several cities in the province, but there were no immediate reports of damages.

Hotel guests at Aston Hotel in Kupang were panicking when the quake hit, said Samuel Malohana, a hotel employee. About 100 guests left their room and gathered in front of the hotel.

"But now most of them have come back to their room and no damages at the hotel," Samuel said.

Head of the Earthquake and Tsunami Center of BMKG, Daryono, said he received report of light damages at the office of Kupang's regional head.

Indonesia straddles the Pacific Ring of Fire, an area of high seismic activity that rests atop multiple tectonic plates.