On 25 April 2015, an earthquake measuring 7.8 on the moment magnitude scale, struck Nepal and triggered an avalanche on Pumori that swept through the South Base Camp. At least 19 people were said to have been killed as a result. Just over two weeks later, on May 12, a second quake struck measuring 7.3 on the Mw. Some of the trails leading to Everest Base Camp were damaged by these earthquakes and needed repairs.