Kolkata: A low intensity earthquake, measuring 3.5 on the Richter scale, rocked parts of Sikkim on Saturday, a met official said.
"A very low intensity earthquake of 3.5 on Richter scale hit Sikkim today (Saturday) in the morning. The epicentre of the earthquake was the Sikkim-Nepal border," said GC Debnath, director, Regional Meteorological Centre, Kolkata.
An expert on seismicity of the region dubbed the earthquake as an aftershock of the major earthquake that hit the hill state on September 18.
SK Nath, who has been working extensively on the microzonation and seismicity of the Sikkim region since 1995, said: "This is just one of the aftershocks of the major earthquake that hit the state last month.
"I don`t think there is much to worry about it," said Nath, who is also a senior professor of geology and geophysics, at the Indian Institute of Technology (IIT)-Kharagpur.