The study is the latest to warn of the risk of another major quake around Nepal's Gorkha district, near the epicentre of a 7.8-magnitude tremor on 25 April – the worst in Nepal in more than 80 years. It was followed on May 12 by a 7.3-strong aftershock.A massive underground faultline that ruptured last year, causing a killer earthquake in Nepal, is still under tremendous strain underneath Kathmandu, a study said on Monday. This meant another major tremor could happen in an area home to more than 1 million people within years or decades rather than the centuries that typically elapse between quakes, researchers wrote in the journal Nature Geoscience. Nepal earthquake continues to drive aftershocks through the lives of women | Natalie Curtis Read more Lead author John Elliott of Oxford University said the rupture, shooting upward through the faultline from deep below, stopped abruptly 11km (6.8 miles) beneath the Nepalese capital, leaving an unbroken upper portion nearer the surface.