An earthquake with a magnitude of 5.9 shook the ocean floor early Sunday near the Pacific islands of Tonga, smaller than initially estimated, the US government said.
The US Geological Survey originally estimated a 6.7 magnitude.
The USGS said the epicenter of the tremor, which occurred at 0336 GMT, was located 143 kilometers (89 miles) north-northeast of the island nation's capital, Nuku'alofa.
No reports of casualties or damage were immediately available.
Related Links
Indonesia quake teams using tsunami experience, says UN chief
International rescue teams helping victims of the Indonesia earthquake, which has killed over 4,600 people, gained valuable experience in the operation after the 2004 tsunami disaster, UN aid coordinator Jan Egeland said Sunday.
