The quake, which struck at 00:25:57 Western Indonesia Time (WIB), was centered 185 kilometers northwest of Melonguane, at a depth of 185 kilometers, the BMKG noted on its official website.
The quake was not significant enough to cause a tsunami. However, the BMKG has warned of potential aftershocks following the quake.
A quake of magnitude 5.5 can cause considerable damage on land.
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