On 25 April 2015 a 7.8 earthquake struck Nepal in Asia. The earthquake occurred on a convergent collision plate boundary between the Indian and Eurasian plates. The focus was only eight kilometres deep and the epicentre was just 60 kilometres north-west from the capital Kathmandu.
The earthquake triggered an avalanche on Mount Everest, killing approximately 20 people. This made April 25 2015 the deadliest day on the mountain in history. The earthquake triggered another huge avalanche in the Langtang valley, where 250 people were killed.