5.1 Magnitude Earthquake Strikes West Bengal's Kolkata

The National Centre for Seismology said the quake occurred at a depth of 91 km in the Bay of Bengal.

Susmita Deb, a Kolkata resident, said she had just woken up when the earthquake struck and everything started shaking. “It lasted for a few seconds,” she said.

Kolkata falls under seismic zone 4, which is susceptible to the high damage risk of severe earthquakes. There are four seismic zones with zone 5 being the most and zone 2 the least active. Around 11% of the country falls in zone 5, 18% in zone 4, 30% in zone 3, and the remaining in zone 2.