Residents of north Bengal, neighbouring Sikkim and Bhutan experienced at least three mild earthquakes or aftershocks throughout Tuesday after an earthquake measuring 5.4 on the Richter scale struck the Sikkim-Bhutan border at 8.49pm on Monday.

On Tuesday, the mild tremors, bearing magnitudes of 4.1, 3.7 and 3.9 in the Richter Scale, were felt in north Bengal, Sikkim and Bhutan on Tuesday morning.

According to the National Centre for Seismology (NCS), these aftershocks came in less than 12 hours after Monday’s quake that had driven people out into the streets.

The milder ones, sources said, occurred on Tuesday at 7.07am, 62km east of Siliguri, at 10.44am on Jalpaiguri town outskirts, and 2.31pm in Bhutan.

Although no reports of any damage or losses have been found yet, people in all these places came out of their homes in panic, said sources.

Administrative sources said Bengal governor Jagdeep Dhankhar had called up chief minister Mamata Banerjee, who is currently touring north Bengal for her political campaigns, to inquire after her well-being after the quakes near Siliguri and Jalpaiguri took place.

Prime Minister Narendra Modi, in Cooch Behar to attend a public meeting, also took a stock of the situation, said sources.