Port Blair: Earthquake of magnitude 4.3 hit Nicobar Islands at 3:57 am on Wednesday.
There were no immediate reports of loss of life or property. However, it was not so powerful as to merit a tsunami warning.
The Andaman and Nicobar archipelago falls under a high seismic zone. India has a dedicated tsunami warning centre that sends alerts to states and neighbouring littoral countries in case of an earthquake.