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A seismographer uses a pen to point out the initial shock waves of an earthquake charted on a seismograph. Getty ImagesImage used for illustrative purpose.
JAKARTA - A 6.3-magnitude earthquake struck the Indonesian island of Sumatra on Friday, according to the country's Meteorology, Climatology and Geophysics Agency (BMKG).
The BMKG reported that the earthquake occurred at a depth of approximately 10 kilometres.
The quake did not pose a tsunami risk, authorities said.There were no immediate reports of injuries.
Indonesia lies within the Pacific Ring of Fire, a tectonic zone characterised by frequent seismic and volcanic activity.
