The National Tsunami Warning Center issued a tsunami warning for parts of Alaska’s Aleutian Islands, and a watch for portions of the West Coast, including California, Oregon, Washington and

The Pacific Tsunami Warning System, which gauged the quake at 7.0, said, however, there was no tsunami warning after the quake. The US Geological Survey also said the earthquake was at a magnitude of 7.

Russian authorities have cancelled tsunami alerts for the Kamchatka Peninsula, Sakhalin Island and the town of Severo-Kurilsk in the northern Kuril islands following Wednesday's powerful earthquake, officials said.