NEW DELHI: Four earthquakes, the strongest being of magnitude 6.2, jolted Nepal in quick succession with tremors reverberating through parts of north India including Delhi-NCR, the National Centre for Seismology (NCS) said on Tuesday. An NCS official said the first quake of magnitude 4.6 struck west Nepal at a depth of 10 kilometre at 2:25 pm, followed by the 6.2 magnitude jolt at 2:51 pm. Two more quakes (magnitude 3.6 and 3.1) hit the same region at a depth of 15 km and 10 km at 3:06 pm and 3:19 pm, respectively. People in Delhi and the National Capital Region reported strong tremors after the second quake and rushed out of their offices and high-rise residential buildings. Tremors were felt in Chandigarh, Jaipur and other parts of north India as well.