An earthquake measuring magnitude 4.1 struck Bangladesh early Tuesday, the National Centre for Seismology (NCS) reported. The event occurred at 04:06:46 IST on 3 February 2026 at latitude 22.84 N and longitude 89.01 E, at a depth of 150 km. The NCS posted the details on X and linked to the BhooKamp app for further information.
Quakes of this size are often light and may cause little or no damage, but they still release measurable energy: a magnitude-4.0 event releases roughly the equivalent of six tons of TNT. Because the magnitude scale is logarithmic, energy increases quickly with each whole-number step: a 5.0 equals about 200 tons of TNT, a 7.0 about 199,000 tons, and a 9.0 roughly 99 million tons—an amount the USGS says would be catastrophic and comparable to tens of thousands of nuclear weapons.
Bangladesh lies at the junction of the Indian, Eurasian and Burma tectonic plates. The Indian plate is moving northeast at roughly 6 cm per year while the Eurasian plate advances north at about 2 cm per year. Major fault zones affecting the country include the Bogura, Tripura, Shillong Plateau, Dauki and Assam faults.
Authorities identify 13 earthquake-prone areas across Bangladesh. Chattogram, the Chattogram Hill Tracts and Jaintiapur in Sylhet are classed as extreme-risk zones due to their geology and proximity to active faults. High population density raises the stakes: in 2022 Dhaka had about 30,093 residents per square kilometer, and The Daily Star lists the city among the 20 most vulnerable to earthquakes.
There were no immediate reports of damage or casualties. This account is based on NCS data and syndicated feeds and is published as received; the publisher assumes no responsibility for accuracy or completeness.
