The 1935 Quetta earthquake occurred on 31 May between 2:33 am and 3:40 am at Quetta, Balochistan, British India (now part of Pakistan). The earthquake had a magnitude of 7.7 Mw and anywhere between 30,000 and 60,000 people died from the impact. This ranked as the deadliest earthquake that hit South Asia until the 2005 Kashmir earthquake. The quake was centred 4 km south-west of Ali Jaan, Balochistan, British India. Source