An earthquake measuring 6.4 on the Richter Scale occurred in Tezpur of Assam today and tremors were felt across Assam, North Bengal and other parts of Northeast. The quake hit at a relatively shallow depth of 10 kilometres. The epicentre of the earthquake was 36 km west northwest of Assam's Tezpur at Dhekiajuli, the NCS said. Assam CM Sarbananda Sonowal later said: "Big earthquake hits Assam. I pray for the well-being of all and urge everyone to stay alert. Taking updates from all districts." "Just experienced a massive earthquake in Assam. Waiting for details," Assam Health Minister Himanta Biswa Sarma tweeted along with photos of broken walls inside a building and of a broken boundary wall.