Updated On: 30 June, 2025 05:28 PM IST | Port Blair | ANI
The Andaman Sea and the Andaman and Nicobar Islands fall within Seismic Zone V, the highest risk zone in India. The Alpine-Himalayan seismic belt, which extends up to the Andaman-Nicobar island region, is known to be one of the world's seismically active belts, according to the Ministry of Earth Sciences

In a social media post on X, the NCS wrote, "EQ of M: 4.7, On: 30/06/2025 10:09:03 IST, Lat: 9.43 N, Long: 94.17 E, Depth: 10 Km, Location: Andaman Sea." Pic/ @NCS_Earthquake
The Andaman Sea experienced a second earthquake of magnitude 4.6 on the Richter Scale today, with the tremors occurring at 11.22 am, just an hour after the first quake at 10:09 am.
According to the National Centre for Seismology (NCS), this earthquake also occurred at a depth of 10 kilometres.
The social media post on CNS reads, "EQ of M: 4.6, On: 30/06/2025 11:22:23 IST, Lat: 9.45 N, Long: 93.93 E, Depth: 10 Km, Location: Andaman Sea."