The epicentre of the quake that struck at 11.43 AM was at a place in Sikkim whose latitude and longitude were 27.4 degree N and 88.5 degree E respectively, the sources said.
A report from Gangtok in Sikkim said some buildings had developed cracks and people were out on the streets.
Some schools announced holiday and a massive traffic jam was reported from there.
A report from Siliguri said the tremor was also felt in Siliguri and people came out of their houses in panic.
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