New Delhi, May 13 : A strong aftershock measuring 6.1 on the Richter scale rocked Chengdu, the capital of southwest China's Sichuan Province, around 3:10 p.m. on Tuesday.
The epicenter of Tuesday's quake was again in Wenchuan County, The China Daily quoted Yin Zhaomin, an official with the China Seismological Bureau, as saying.
This was the strongest aftershock after the devastating quake, measuring 7.8 on the Richter scale, hit Wenchuan County, 159 km northwest of Chengdu on Monday afternoon.
Office workers in downtown Chengdu took to the streets again after the quake. Many said they felt clearly the buildings were rocking and bottles toppled.
Experts with the China Earthquake Networks Center said strong aftershocks might still rock Wenchuan, though quakes exceeding 7.8 on the Richter scale are unlikely.
The region, which experts said is historically prone to earthquakes, has suffered more than 1,950 aftershocks in the past 25 hours, including three over 6 on the Richter scale and 14 between 5 and 6.