A strong earthquake rattled Afghanistan and Pakistan on December-20 afternoon, the US Geological Survey said, forcing residents into the streets in Kabul and Islamabad. The 6.1-magnitude quake hit around 50-kilometres(30-miles) southwest of Jurm in northern Afghanistan and was over 200-kilometres deep, the USGS said. In both capital cities, residents felt two short tremors in quick succession, however there were no immediate reports of damage.