The United States Geological Survey (USGS) reported that a 7.4 magnitude earthquake that occurred off the Alaska peninsula late Saturday local time caused a tsunami warning.
The little village of Sand Point was roughly 55 miles (89 kilometres) to the southwest of the shallow earthquake, which struck at 10:48 PM Saturday (06:48 GMT Sunday), according to the news agency.
A tsunami warning was in place for southern Alaska and the Alaska peninsula, according to the National Tsunami Warning Centre in Palmer, Alaska.
The level of tsunami hazard for various US and Canadian Pacific coasts in North America is being assessed.
The seismically active Pacific Ring of Fire includes Alaska.
The largest recorded earthquake in North America, with a magnitude of 9.2, struck Alaska in March 1964. It destroyed Anchorage and caused a tsunami that hit Hawaii, the US west coast, and the Gulf of Alaska.
The earthquake and tsunami killed more than 250 people.