An earthquake struck Nepal at 11:56:54 NST on 25 April 2015 with a moment magnitude (Mw) of 7.8 or 8.1Ms and a maximum Mercalli Intensity of IX (Violent). It was the most powerful earthquake to strike Nepal since the 1934 Nepal-Bihar earthquake. Many thousands of people died as a result, with most casualties reported in Nepal, including on Mount Everest, and adjoining areas of India, China, and Bangladesh.