A tsunami alert was in effect for the Philippines, Indonesia, Taiwan, Japan, Guam, the Northern Marianas and Papua New Guinea, the Pacific Tsunami Warning Center said.
A 7.9-magnitude undersea quake struck off the eastern coast of the Philippineslate Friday, triggering tsunami warnings across a wide swath of Asia. There were no immediate reports of damage or injury.
The head of the Philippine seismology agency, Renato Solidum, said his bureau recorded a preliminary magnitude of 7.7. He said that residents living along the coastline of eastern Samar Island were advised to evacuate to high ground in case of the tsunami.