Highlights 3 major earthquakes shake the world in the span of 72 hours. 964 mild earthquakes were recorded in 2020, out of which 13 of them were in the Delhi-NCR. New Delhi: As three major earthquakes shake the world in a span of 72 hours, many apprehend some big temblor is due anytime soon. On Friday (February 13), Delhi and its adjoining areas were hit by a massive jolt measuring 6.3 on Richter scale, with its epicenter in Tajikistan. Accessing the situation, senior geologists stress upon having a proper disaster management plan to deal with any emergency, as it is not possible to predict quakes. Starting with a massive undersea quake hitting north of New Zealand on February 11, 2021, which was measured to be of 7.7 magnitude on a Richter scale, prompted a tsunami alert in the region.