Quake off East Timor leaves Darwin shaking AN earthquake off the coast of East Timor has left bookshelves shaking and chairs moving in Darwin. The 6.4-magnitude quake struck just after 9.20pm (CST) on Sunday in the Banda Sea northeast of East Timor. It was felt shortly afterwards in Darwin - about 500km away. "We certainly felt things," Senior forecaster at the Bureau of Meteorology in Darwin Steph Bond told AAP. It went for quite a length of time, around 30 seconds ... We had books moving. Senior seismologist at Geoscience Australia, Jonathan Bathgate said the epicentre of the quake, which was around 115km under the sea floor, was also felt in Queensland and as far south as Katherine in the Northern Territory. "Most have reported shaking for 15 to 30 seconds," he said. Depending on people's location, some reported seeing hanging objects swinging, while others witnessed furniture, such as beds and chairs moving, he said. Aftershocks as strong as magnitude 5.0 may be felt in Darwin over the next few days or hours. This event in itself is not unusual for the area and is certainly something that Darwin residents are relatively used to. Ms Bond said there was not tsunami threat to the Australian mainland, island or territories from the quake.