Nagpur: An earthquake of “very weak” magnitude, i.e., 2.8 on the Richter scale, struck Nagpur at 2:53 pm on Tuesday. According to Volcano Discovery, the closest larger town where the quake might have been felt is Kalmeshwar, a town with 19,000 inhabitants in Nagpur, located 19.4 km (12 mi) north of the epicenter.
People likely experienced very weak shaking there. It is pertinent to mention that in the capital of India, New Delhi, 857 km (533 mi) away from the epicenter, the earthquake could not be felt. The amount of shaking that occurs on the surface due to an earthquake is called intensity.
It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI), ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I, II,…IX, X, often displayed with color codes ranging from light blue to dark red. Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.