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Sat, 16 Aug 2025, 22:49 | BY: EARTHQUAKEMONITOR
A shallow magnitude 6.1 earthquake was reported early morning near Poso, Kabupaten Poso, Sulawesi Tengah, Indonesia.
According to Indonesia’s Meteorology, Climatology, and Geophysical Agency, the quake hit on Sunday, August 17th, 2025, at 6:38 am local time at a shallow depth of 10. km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the German Research Centre for Geosciences (GFZ), which listed it as a magnitude 5.6 earthquake. Other agencies reporting the same quake include the citizen-seismograph network of RaspberryShake at magnitude 5.7, and France’s Réseau National de Surveillance Sismique (RéNaSS) at magnitude 5.1.
Generally quakes of this magnitude are recorded by more than one agency and the results can vary, with subsequent reports that come in after the first one often showing more accuracy.
Based on the preliminary seismic data, the quake should have been widely felt by almost everyone in the area of the epicenter. It might have caused light to moderate damage.
Moderate shaking probably occurred in Poso (pop. 47,500) located 14 km from the epicenter.
In Palu
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