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In page New Delhi:

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New Delhi falls under the seismic zone-IV, making it vulnerable to earthquakes.[1] It lies on several fault lines and thus experiences frequent earthquakes, most of them of mild intensity. There was a spike in the number of earthquakes between 2011 and 2015, most notable being a 5.4 magnitude earthquake in 2015 with its epicentre in Nepal, a 4.7-magnitude earthquake on 25 November 2007, a 4.2-magnitude earthquake on 7 September 2011, a 5.2-magnitude earthquake on 5 March 2012, and a swarm of twelve earthquakes, including four of magnitudes 2.5, 2.8, 3.1, and 3.3, on 12 November 2013.[citation needed]