https://www.thehindubusinessline.com/news/variety/how-close-are-we-to-next-big-quakes-in-the-himalayas/article32740358.ece

"Steven Wesnousky, a paleoseismologist at the University of Nevada, Akash Kharita of IIT-Roorkee writes that the finding is based on a study of earthquake data at 30 sites along the Himalayan arc...."

"..“Sufficient stress has been accumulating in the Himalayas along the Main Himalayan Thrust for years,” Wesnousky adds. He says this pent-up stress could produce a sequence of mega thrust earthquakes, with multiple events greater than magnitude 8.5 (M8.5)..."

(Some say its BS:) "...But Roger Bilham, a research scientist at the University of Colorado, Boulder, US, says that a weakness in studies like Wesnousky’s is that available data only record one large earthquake. Researchers may want to see the paleoseismic record extended back 10,000 years — multiple earthquake cycles — at each location to determine the intervals between great quakes..."