A strong earthquake of magnitude 6 hit the seismologically prone Andaman and Nicobar Islands on Thursday, National Centre for Seismology (NCS) said.
There was no tsunami alert issued as sea levels around the Andaman Nicobar archipelago showed no major rise, said SPS Shenoi, Director INCOIS.
The earthquake hit the region at 8.43 am and its epicentre was Nicobar Islands region.
There were no immediate reports of loss of life or damage to property, officials said.