Four low-intensity tremors were felt in Uttarakhand's border district of Pithoragarh and adjoining areas, an official said on Monday.

The first tremor of 4.2 magnitude hit at around 1.34 am on Sunday. It was followed by three more tremors, the two of which were of 2.7 magnitude and 2.8 magnitude, respectively, district disaster management officer Bhupendra Singh Mahar said.