Parts of Darwin's CBD have been evacuated after the city was shaken by a powerful 7.2 magnitude earthquake originating in Indonesia.

The earthquake was felt in Darwin about 12.30pm local time. According to Geoscience Australia, it originated in the Banda Sea – more than 800 kilometres north of Darwin – at a depth of 207 kilometres.

The Bureau of Meteorology said there was no tsunami threat to Australia.

No injuries or damage have been reported in Darwin, but residents reported feeling a strong tremor and a number of office buildings and hotels were evacuated as a precaution.