Northern Territory residents have been rocked by a strong offshore earthquake which has rattled the Top End.

Geoscience Australia recorded the 6.7 magnitude earthquake off the Tanimbar Islands Region in Indonesia, which hit at a depth of 37km undersea at about 3.20pm local time on Monday.

Over 1300 people made official reports of feeling the quake in Darwin, with more reporting the shocks as far south as Katherine and as far west as Kununurra in Western Australia.

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The Joint Australian Tsunami Warning Centre, operated by the Bureau of Meteorology and Geoscience Australia, said there was no tsunami threat to the Australian mainland or islands.

“Buildings shook for a good minute or two,” one person shared on Facebook.

Another said they felt it in a building on the Darwin waterfront “five stories up”.

“I’m down in Katherine for work and felt that here too, was pretty strong,” said another.

There were also reports of items ”toppling” off shelves in a Darwin stores.

Despite the strong earthquake, local Indonesian media said there were no immediate reports of injuries or structural damage closer to the epicentre.