A magnitude-7.3 earthquake struck Indonesia early Saturday, causing tsunami warnings throughout the region.
The temblor's epicenter was located 154 km (96 miles) northwest of Kota Ternate, Indonesia, and the major earthquake occurred 10:31 a.m. local time Saturday (9:31 p.m. EST Friday), the U.S. Geological Survey and the U.S. Pacific Tsunami Warning Center reported.
Tsunami advisories were issued for Indonesia, Japan, Taiwan, the Philippines, the Solomon Islands and other areas, the Tsunami Warning Center said.
Tsunami waves up to 1-meter high (3 feet) were possible on some coasts of Indonesia.
There were no immediate reports of damage or injuries, The Associated Press reported.
Four strong aftershocks -- 5.9, 4.8, 4.7 and 5.0 magnitude, respectively -- have occurred since the major earthquake, the USGS said.