The four recent major earthquakes of the Himalayan Convergence Zone, viz., the Kangra earthquake of 1905, the Bihar-Nepal earthquake of 1934, and the two Assam earthquakes of 1897 and 1950 were assigned magnitudes greater than 8 by Richter. Although estimates of areas vary, it is agreed that an extended rupture with its long dimension parallel to the local strike of the Himalaya was involved in each case.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/rupture-propagation-direction-major-earthquakes-along-himalayan-convergence-zone
[2] http://admin.indiaenvironmentportal.org.in/category/author/ramesh-chander
[3] http://admin.indiaenvironmentportal.org.in/category/journal/current-science
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/earthquakes
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/geology
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/himalaya