The National Tsunami Center canceled a tsunami warning and later an advisory that was issued for parts of the U.S. west coast after a magnitude-7.9 earthquake hit off Alaska.
The center warned, however, that residents urged to seek higher ground should not assume it is safe to return home.
"Do not re-occupy hazard zones until local emergency officials indicate it is safe to do so," the center warned.
The quake struck about 175 miles southeast of Kodiak Island at a depth of 6 miles at 12:31 a.m. local time (4:31 a.m. ET) Tuesday, the U.S. Geological Survey (USGS) said. It was initially reported as magnitude-8.2 earthquake. There were no immediate reports of any damage.
Tsunami watches have been canceled for Washington, Oregon, California, Hawaii and British Columbia. Officials in Japan say there is no tsunami threat there.
The USGS had earlier said the first wave could reach Kodiak in Alaska at 1:45 a.m. local time (5:45 a.m. ET) and Neah Bay in Washington at 5:55 a.m. local time (8:55 a.m. ET).
Mickey Varnadao, a computer specialist with the center in Palmer, Alaska, said the alert was canceled the alert after major waves failed to materialize on the Alaska coast. Measuring stations found maximum tsunami heights of less than 1 foot.
"A tsunami was generated by this event, but no longer poses a threat," the center said. in a statement. "Some areas may continue to see small sea level changes."
Lt. Tim Putney, of the Kodiak Police Department, said: “We haven’t seen anything yet or had any reports of a wave.”
Authorities in Kodiak told people living under the 10-foot mark to move to higher ground. Putney said the town has several shelters above 100-foot.
Warnings from the National Weather Service sent to cellphones in Alaska soon after he quake said: “Emergency Alert. Tsunami danger on the coast. Go to high ground or move inland.”
People said on social media that the tremblor was felt hundreds of miles away in Anchorage.
Contributing: The Associated Press