Earthquake tremors were felt in a number of cities in Khyber-Pakhtunkhwa (K-P) and Islamabad Tuesday night.According to Express News, magnitude of the quake was 6.0 on the Richter scale. However, Radio Pakistan reported that the earthquake had a magnitude of 5.4.The epicenter of the earthquake was Hindu Kush region having the focal depth of 179km.No loss of life or infrastructure was reported till the filing of this report.