ISLAMABAD, Pakistan -- A strong earthquake has rocked northwestern Pakistan, the scene of a devastating quake two months ago. There were no immediate reports of damage or injuries. The U.S. Geological Survey said the quake was a magnitude 6.7 and was centered in the Hindu Kush region of northeastern Afghanistan. It struck shortly before 3 a.m. local time Tuesday. A 7.6-magnitude earthquake on Oct. 8 killed at least 87,000 people in northwestern Pakistan and Indian Kashmir. An earthquake of magnitude 6 or grater can cause severe damage.