The US Geological Survey said the quake of magnitude 6.8 was 57 km deep and struck 29 km west of Imphal, the capital of the Indian state of Manipur bordering Myanmar.
The quake struck while many residents were asleep, and roofs and staircases of some buildings collapsed in the city of about 270,000 people.
“It was the biggest earthquake we’ve felt in Imphal,” disaster response worker Kanarjit Kangujam told Reuters by telephone.
Police and hospitals in Imphal said the casualty toll had reached four dead and nearly 100 injured.
