This is the terrifying moment a powerful magnitude 7.3 earthquake shook homes in Alaska.

CCTV footage shows the tremor rattling parked cars in Sand Point, some 50 miles (80 kilometres) from the earthquake's epicentre, on Wednesday.

The United States Geological Survey said the quake struck southeast of Sand Point on Popof Island at 12:37 pm local time. It was recorded at a depth of 12.5 miles (20.1 kilometres).

Austin Holland of the Alaska Earthquake Center said: 'This area has been active over the past several years with a series of earthquakes of magnitude 7 or greater. This event, located 55 miles (89 km) south of Sand Point, Alaska, was felt over a broad region, extending as far as Anchorage and Juneau, where reported shaking was light. Ground shaking was the strongest in Sand Point, where one resident reported objects flying out of the pantry and off of shelves.

'In Homer, it was described as mild rolling, with lamps and plants swaying. We have not received reports of significant damage in the communities nearest to the epicenter.'

The National Oceanic and Atmospheric Administration raised a tsunami warning for majority of the Alaskan but it was later lifted at 2:43 pm.