Indonesia was hit by 6.0-magnitude earthquake off island of Sumba on Tuesday.
According to the US Geological Survey, the tremors were recorded near Sumba island several hundred miles south of Sulawesi, which is dealing with the aftermath of a devastating quake and tsunami which hit on Friday last.
Meanwhile, the United Nations has warned that 191,000 people are in urgent need of humanitarian assistance in the quake and tsunami-battered Sulawesi region of Indonesia.