An earthquake north of Darwin has given buildings in the city a "good shake", the Bureau of Meteorology says.

The 5.6 magnitude earthquake, located in the Banda Sea at a depth of 100km, hit at 9.06am on Thursday.

A number of people in Darwin took to Twitter to say they felt the quake, including some who said it shook their building.

"Wonder where the epicentre of that earthquake just felt in Darwin was? Must have been a strong one!" Jacqui Murdoch wrote.

There are also reports it was felt at the Darwin Central Hotel.

The bureau says there is no tsunami risk and police say there are no reports of damage.

Source: AAP