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
April 2015 Nepal earthquake at a shallow depth of . Assuming that 25 April earthquake was the largest event in this seismic episode, Nepal could expect more than 30 aftershocks greater than magnitude 5 over the following month. As of 24 May 2016, 459 aftershocks had occurred with different epicenters and magnitudes equal to or above 4 M (out of which 51 aftershocks are equal to or above 5 M and 5 aftershocks above 6 M) and more than 20,000 aftershocks less than 4 M. A second major earthquake occurred on 12 May 2015 at 12:50 NST with a moment magnitude (M) of 7.3M