A very strong earthquake of 7.7 magnitude struck near India's Nicobar Islands and northwest of the tip of Indonesia's Sumatra island on Saturday, the U.S. Geological Survey said.
A regional tsunami watch was in effect for all areas of the Indian Ocean, the Pacific Tsunami Warning Center said on its website.
A regional tsunami watch was in effect for all areas of the Indian Ocean, the Pacific Tsunami Warning Center said on its website.