2009 L'Aquila earthquake region saw dozens of significant aftershocks following the main earthquake. The strongest, which hit at 19:47 CEST on 7 April, measured magnitude 5.3 and caused further damage. According to the Italian National Geophysics Institute director Boschi, the aftershock epicentres migrated south-east, thus lessening the risk of further major shocks near populated areas. Aftershocks caused safety problems for rescue crews searching for injured victims trapped in precarious structures in the historic center of L'Aquila, a medieval city. Using cranes and backhoes to remove loose bricks and broken timbers, the crews were aware that even a small aftershock could have triggered the
2009 Yunnan earthquake located at . In total, there were over 8 aftershocks. The earthquake destroyed 10,000 houses and damaged a further 30,000. One person died and over 300 people were injured, with over 50 suffering serious injuries. Yunnan province's civil affairs department was dispatching 4,500 tents, and 3,000 quilts as part of the disaster relief efforts. Also, a coal mine collapsed in the epicentral area within 50 miles. 2009 Yunnan earthquake The 2009 Yunnan earthquake occurred with a moment magnitude of 5.7 in Yunnan province, People's Republic of China on 9 July. At least one person died and over 300 were injured,