Because they lie along boundaries of the tectonic plates. Chief tectonic sub-regions of India are the mighty Himalayas along the north. The Himalayas consist primarily of sediments accumulated over long geological time in the Tethys. read more
A devastating magnitude-7.8 earthquake rocked Nepal. It was so powerful that tremors were felt in north and east India. Near the quake epicentre, two similar disasters were recorded in the recent times. read more
According to the Indian metrological department, the Bureau of Indian Standards has grouped the country into four seismic zones, from Zone V, the most active, to Zone II, the least active. read more