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JUNEAU, Alaska -- Officials have canceled a tsunami warning for parts of southern Alaska and coastal Canada.

The Alaska Tsunami Warning Center says a tsunami was generated by a strong earthquake, but the waves don't pose a threat to the areas. The center says some areas are seeing small sea level changes, but there will be no widespread destructive wave that had earlier been warned about.

The warning area included coastal areas from Cape Fairweather, Alaska, to the north tip of Vancouver Island, Canada. The area extended for more than 700 miles.

A tsunami warning was in effect for parts of southern Alaska and coastal Canada after a strong earthquake shook the region at midnight Friday.

The magnitude 7.5 quake struck at midnight Friday (1 a.m. PST Saturday) and was centered about 60 miles west of Craig, Alaska, the U.S. Geological Survey said.