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 purification tablets and buckets. Numerous other organizations provided similar support. India was the first to respond within hours, being Nepal's immediate neighbour, with Operation Maitri which provided rescue and relief by its armed forces. It also evacuated its own and other countries' stranded nationals. India has been the largest aid donor to Nepal following the earthquake with a billion dollar support apart from other non-monetary reliefs extended. The United States, China and other nations have provided helicopters as requested by the Nepalese government. On 26 April 2015, international aid agencies and governments mobilized rescue workers and aid for the earthquake.