Pingwu County and Beichuan County, Sichuan, also northeast of Wenchuan and close to the epicenter of a 7.2 M s earthquake in 1976, suffered a 6.1 s aftershock (5.7 w according to USGS) on August 1; it caused 2 deaths, 345 injuries, the collapse of 707 homes, damage to over 1,000 homes, and blocked 25 kilometers of country roads.