7.0-magnitude quake rocks off Indonesia's Sumatra Island, tsunami warning issued

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Photo taken by a mobile phone shows citizens being out of an apartment building following an earthquake in Jakarta, Indonesia, Aug. 2, 2019. Indonesian authorities issued a tsunami warning on Friday after a 7.0-magnitude earthquake struck off the Island of Sumatra, media reports said. (Xinhua/Du Yu)

JAKARTA, Aug. 2 (Xinhua) -- Indonesian authorities issued a tsunami warning on Friday after a 7.0-magnitude earthquake struck off the Island of Sumatra, media reports said.