Nepal has begun its first-ever survey to remeasure Mount Everest to check if the world’s tallest peak’s height was altered by the 7.8-magnitude earthquake that struck the country in 2015. Notably, the official height of Mount Everest, which lies in the Mahalangur Himal sub-range of the Himalayas, is 8,848 metres (29,029 feet), first recorded by an Indian survey in 1954.