Lahore- An earthquake of magnitude 3.4 on the Richter scale jolted several cities of Punjab today morning. However, there were no reports of injuries or damage. The earthquake struck at 8:50 AM and had its epicenter about 2 kilometers northwest of Parachinar in Khyber Pakhtunkhwa, said the Pakistan Meteorological Department. Tremors were felt in Lahore, Nankana, Sheikhupura, Gujranwala, Hafizabad and other cities.