Dhaka [Bangladesh], September 21 (ANI): An earthquake of magnitude 4.0 struck Bangladesh on Sunday, a statement by the National Center for Seismology (NCS) said. As per the NCS, the earthquake occurred at a shallow depth of 10km, making it susceptible to aftershocks. In a post on X, it said, 'EQ of M: 4.0, On: 21/09/2025 11:49:36 IST, Lat: 25.04 N, Long: 91.57 E, Depth: 10 Km, Location: Bangladesh.' There are five major fault zones in and around Bangladesh, namely Bogura fault zone, Tripura fault zone, Shilong Plateau, Dauki fault zone and Assam fault zone, The Daily Star reported. Thus, Bangladesh is a location of 13 earthquake prone areas, and Chattogram, Chattogram Hill Tracts, and Jaintiapur of Sylhet remain in extreme risk zones.