The epicenter of the earthquake which struck at 06.34 a.m. local time was located 71 kilometers northwest of Enggano at a depth of 11 kilometers, the agency said on its official website.
The agency said the earthquake did not have the potential to cause a tsunami.
However, it asked local residents to stay alert for aftershocks.
No injury or casualty was reported.
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Translator: Zubi Mahrofi, Suharto
Editor: Sri Haryati
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