The earthquake of June 7, 1255 AD (1310 BS) is the first recorded earthquake in the history of Nepal. During the earthquake nearly one third of the total population of Kathmandu were killed. Among the killed were the King of Kathmandu valley, Abahya Malla. The earthquake magnitude at that time is believed to be around 7.7 in Richter scale.
Another big earthquake was recorded in 1260 AD (1316BS) during the reign of King Jayadev Malla. During the earthquake many buildings and temples collapsed. there was a huge loss of lives and an epid
emic and famine after the earthquake was attributed to the natural disaster.