The major reason for the high frequency and intensity of the earthquakes is that the Indian plate is driving into Eurasia at a rate of approximately 47 mm/year.
Himalayan belt: Collision between Indo-Austral plate with Eurasian plate and Burma Plate with Java Sumatra plate. This collision causes lots of strain in underlying rocks’ energy of which is released in the form of earthquakes.
Andaman and Nicobar Islands: Seafloor displacement and underwater volcanoes which disturb the equilibrium of earth’s surface.
Deccan Plateau: some earth scientists have come up with a theory of the emergence of a fault line and energy build-up along the fault line of the river Bhima (Krishna) near Latur and Osmanabad (Maharashtra).
Increasing population and unscientific land use for construction make India a high-risk land for earthquakes.