The quake was centered less than 10 miles outside of downtown Anchorage, near Point MacKenzie.
“That was quite a shaker,” the Alaska Department of Transportation & Public Facilities tweeted.
The department said it had no reports of damage, but it and the Department of Transportation are making visual inspections of bridge structures and will “post updates if needed.”
The earthquake was first reported at 9:59 a.m. (1:59 p.m. ET).