Canada's West Coast is not expected to be hit with a tsunami threat following a 7.4-magnitude earthquake off the coast of Japan, U.S. official say.
Federal agencies say there is no tsunami warning, watch of advisory for British Columbia, California, Oregon, Hawaii, Washington and Alaska.
A tsunami alert for Japan's battered northeastern coast was lifted 90 minutes after the quake struck offshore about 11:30 p.m. Thursday evening, local time.
The country's meteorological society warned residents to expect a wave of up to a metre high.
Hundreds of aftershocks have rocked the country since a massive quake and tsunami crippled Japan on March 11.
Operators at the Fukushima nuclear plant said there were no immediate signs of problems at the facility.
