A spokesman of Pakistan Meteorological Department told Radio Pakistan that the epicenter was near Bannu in KP.
A 6.4-magnitude natural disaster rocked northern and northwestern parts of Pakistan, Afghanistan and Tajikistan on Wednesday, a statement and local media reported.
The tremors have been felt as far as Indian occupied Kashmir according to news reports.
This the second time today that tremors have been felt in Islamabad and Khyber Pakhtunkhwa.
At least nine children were injured in Bannu's Government Model School near Tankhi Bazaar, it said. Tremors were felt in parts of the northwestern Khyber Pakhtunkhwa and east Punjab provinces including Peshawar, Nowshera, and Kohat. The panic-stricken children rushed out of the three-story building with taking to the stairs while few jumped out from second, third floor. The injured have been shifted to District Headquarters Hospital, the report said.
In April 2018, a 5.6-magnitude quake jolted many towns of Khyber-Pakhtunkhwa province. Its depth was recorded at 10 kilometer.
No loss of life or property has been reported yet.