Remarkable aerial photographs have been released today to graphically illustrate how Christchurch's cityscape has forever been changed by the devastating earthquake sequence.

Rebuild Christchurch has released 24 interactive 360-degree aerial panoramas to highlight the post-quake city's changes.

The interactive panoramas focus on the central business district, residential red zone, port of Lyttelton, and scenic areas.

"With most buildings that were damaged now demolished, a blank canvas has emerged where the new city can take shape," said Rebuild Christchurch founder Deon Swiggs.

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"Viewing regular updates from the air enables us to see the gradual rebirth through the rebuild."

The images will be updated to reflect rebuild progress.