On February 27, 2015, the M 7.0 earthquake occurred in north of Nebe, Indonesia as the result of oblique strike-slip faulting within the subducted Australia plate, 550 km beneath the Flores Sea. Focal mechanisms for the earthquake indicate rupture occurred on either a left-lateral structure with a moderately dipping, northeast striking plane, or on a right lateral fault dipping steeply towards the southwest.
The earthquake is located at the eastern end of the Australia slab that was originally subducted at the Sunda-Java trench, several hundred kilometers to the south of the event (and at the surface of the Earth). At the location of the earthquake, the Australia plate moves approximately northwards with respect to the Sunda plate at the rate of 74 mm/yr.
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