A 6.3 magnitude earthquake struck the Bay of Bengal in the early hours of Tuesday, July 29, 2025. The National Centre for Seismology (NCS) reported that the tremor occurred at 00:11:50 IST.

The earthquake's epicenter was located at a latitude of 6.82°N and a longitude of 93.37°E, with a shallow depth of 10 km. The location of the epicenter was approximately 275 km (171 mi) away from Banda Aceh, Nanggroe Aceh Darussalam Province, Indonesia.

While the earthquake's magnitude was significant, there were no immediate reports of damage or casualties. Assessments are underway to determine the quake's impact on coastal regions and islands.

Earthquakes are not uncommon in and around West Bengal. According to VolcanoDiscovery, the largest quake to occur near West Bengal in the past 10 years was a magnitude 5.3 earthquake that hit Meghalaya, India, on July 7, 2021. Over the past week, a light magnitude 2.8 earthquake hit 5.9 km (3.7 mi) away from Tufanganj, West Bengal, India, on July 25, 2025.

NDTV reported on several recent earthquakes felt in West Bengal, including a 4.8 magnitude earthquake in Bankura district and a 5.0 magnitude earthquake in Hooghly district. Tremors from these quakes were also felt in Kolkata and parts of Odisha.

The Times of India reported that a magnitude 7.1 earthquake struck 235 kilometers north-northwest of Siliguri on January 7, 2025.

Earthquakes in the Bay of Bengal can also affect Kolkata and other parts of West Bengal. In February 2025, an earthquake of magnitude 5.1 struck the Bay of Bengal, and tremors were felt in Kolkata, West Bengal, and Odisha.