A man was killed in Shikarpur in West Champaran, Bihar, when an earthquake measuring 5.7 on the Richter Scale rocked Patna and other parts of the state on Saturday evening.
The tremor was felt at 5.04 pm, director of state Meteorological department, AK Sen, told PTI, adding it had its epicentre in Nepal at a depth of 10 km.
The temblor was experienced in Muzaffarpur, Madhubani, Kisanganj, East Champaran, Lakhisarai, Munger and many other parts of the state.
At 9.09am, a temblor measuring 4.8 on the Richter Scale was also experienced.
Referring to the evening quake, Sen said an aftershock of this magnitude is generally not seen three days after a high intensity one like the one that took place on May 12.
“An aftershock of 5.7 intensity after three days of the high intensity earthquake on May 12 measuring 7.3 on the Richter Scale is rare in weather science,” Sen said.
Generally, aftershocks after a high intensity tremor like that of May 12 are not more than four.
According to officials of the state disaster management department, people in Patna, Darbhanga, Gaya, Purnea, Kishanganj, Madhubani, Jehanabad and Aurangabad, Raxaul, Motihari felt the tremors.
A total of 21 people had lost their lives in the May 12 earthquake which was of 7.3 intensity, while 58 people had died in Bihar due to the devastating temblor on April 25.
Several areas in West Bengal, including capital Kolkata, also experienced tremors of moderate intensity, triggering panic among people who fled their houses.