The underground shocks were registered at 22:37 GMT on Friday at the depth of 27.4 kilometres (17 miles). An earthquake with a magnitude 6.0 is considered to be a strong quake according to Richter scale. Such an earthquake can cause damage to some well-built structures, while poorly built structures usually receive moderate or severe damage. The earthquake usually felt in areas of up to hundreds of kilometres from the epicentre. Science Photo Library Earthquake Shakes El Salvador, Nicaragua – Reports The epicentre of the earthquake was located 12 kilometres south-southwest of Mount Taron. READ MORE: 7.2 Magnitude Earthquake Hits Off Papua New Guinea — USGS Another powerful 5.7 magnitude earthquake struck off the coast of Papua New Guinea earlier this week, according to the United States Geological Survey showed. The shocks were registered at 01:23 GMT, 95 kilometres (59 miles) to the south-southwest of Mount Taron.