SINGAPORE Japan's Meteorological Agency issued a tsunami warning for Indonesia, Australia, India and Sri Lanka on Thursday after another powerful earthquake rocked the south of Sumatra island.
"There is a possibility of a destructive regional tsunami in the Indian Ocean," the agency said in a statement, adding that the Indian Ocean coasts of Sumatra and Java and Australia's Cocos Islands could be affected within an hour.
It said all coasts of India's Andaman and Nicobar Islands and all coasts of Sri Lanka could be affected between one to three hours.
The U.S. Geological Survey (USGS) said the quake, which came about 14 hours after another powerful tremor in the same area, measured 7.5. It had earlier put its strength at 7.9.
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