Magnitude 6.1 quake hits South Nias, no damage reported
A 6.1-magnitude earthquake struck waters southeast of Nias Island in North Sumatra on Tuesday, the Indonesian Meteorology, Climatology and Geophysics Agency (BMKG) said.
Source: Astro Awani · August 18, 2026 at 8:35 AM · AI-assisted report
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KUALA LUMPUR, 18 AUGUST 2026 —
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A 6.1-magnitude earthquake struck waters southeast of Nias Island in North Sumatra on Tuesday, the Indonesian Meteorology, Climatology and Geophysics Agency (BMKG) said.
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No casualties or property damage have been reported so far. BMKG said the quake occurred at 1.02 pm local time (0602 GMT), with its epicentre about 147 km southeast of South Nias regency at a depth of 29 km. The agency confirmed the tremor did not pose a tsunami threat.
The latest quake follows a 6.4-magnitude tremor that hit North Sumatra last Saturday. BMKG said the 15 August quake was centred about 11 km southeast of Simalungun at a depth of 168 km. No tsunami warnings were issued and no immediate reports of damage emerged. Indonesia has now experienced two quakes above magnitude 6.0 in North Sumatra within three days, one inland near Simalungun and the other offshore southeast of Nias.
BMKG has not linked the two events. Elsewhere, Indonesia continues to respond to a 7.7-magnitude quake that struck East Nusa Tenggara last weekend. As of Monday, at least 68 people were confirmed dead and more than 200 injured, with thousands displaced.