The April 2015 Nepal earthquake killed 8,962 people in Nepal and injured 21,952 more. It occurred at 11:56 Nepal Standard Time on Saturday 25 April 2015, with a magnitude of 7.8Mw or 8.1Ms and a maximum Mercalli Intensity of X (Extreme). Its epicenter was east of Gorkha District at Barpak, Gorkha, roughly 85 km (53 mi) northwest of central Kathmandu, and its hypocenter was at a depth of approximately 8.2 km (5.1 mi). It was the worst natural disaster to strike Nepal since the 1934 Nepal–India earthquake. The ground motion recorded in Kathmandu, the capital of Nepal, was of low frequency, which, along with its occurrence at an hour when many people in rural areas were working outdoors, decreased the loss of human lives.

Kathmandu, officially Kathmandu Metropolitan City, is the capital and most populous city of Nepal with 845,767 inhabitants living in 105,649 households as of the 2021 Nepal census and approximately 4 million people in its urban agglomeration. It is located in the Kathmandu Valley, a large valley in the high plateaus in central Nepal, at an altitude of 1,400 metres.