A 6.1-magnitude earthquake jolted southwestern China\'s Tibet on Monday at a depth of 10 km, state-run Xinhua News Agency reported. There were no immediate reports of damage or injuries from the 5:23 a.m. (2123 Sunday GMT) quake. Aftershocks, with the strongest measuring 5.1 magnitude so far, have kept striking the areas in Tibet Autonomous Region, according to the report. In July, twin 5.6 and 5.9 magnitude earthquakes killed at least 95 people in Gansu Province.