On 25 April 2015, at 11:56 NST, an earthquake with an estimated magnitude of 7.8 (), hit Kathmandu and its surrounding region, leading to the collapse of the tower. The earthquake's epicenter was approximately  east-southeast of Lamjung, Nepal.
On April 25, 2015, at 11:56 NST, a significant earthquake with an estimated magnitude of 7.8 () affected Kathmandu and its nearby regions, leading to the tower's collapse. The quake's center was located approximately east-southeast of Lamjung, Nepal.