(CNN) -- A tsunami warning has been issued for the Indian Ocean, sparked by an earthquake with a preliminary magnitude of 7.3 located in the Nicobar Islands, India, the Japan Meteorological Agency said Sunday.
"There is a possibility of a destructive local tsunami in the Indian Ocean," the agency said in a written statement about the earthquake, which struck at 12:02 p.m. ET.
In an hour or less, a tsunami could hit all coasts of the Andaman and Nicobar Islands of India and, in Indonesia, the Indian Ocean coast and Malacca coast of Sumatra.
The U.S. Geologic Survey measured the quake at a preliminary 7.0 magnitude and said it was centered about 690 miles southwest of Bangkok.
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