Earthquakes strike Northeast, West Bengal; PM assures assistance

The first jolt of 5.8 magnitude was recorded at 4.41 pm, the second tremor of 3.1 magnitude was felt at 4.58 pm, followed by another tremor of 2.9 magnitude at 5.21 pm. The fourth jolt was of 2.7 magnitude and recorded at 6.11 pm, officials said