The Central Himalayas encompasses the areas with the highest topographic relief. The Central Himalayas is again separated into four zones:The High Himalayan Crystalline Sequence (HHCS)The Tethys Himalaya (TH)The Nyimaling-Tso Morari Metamorphic Dome (NTMD)The Lamayuru and Markha Units (LMU)
The main reason for the earthquakes in India is the tectonic movement. The Indian plate is continuously hitting at Asia plate at a rate of approximately 47 mm/year (anticlockwise).