Earthquake returning.
Mag 5 jolts Norther BD/Rangpur tonight 7pm.
A few weeks before, another one shook Sylhet.
https://earthquake.usgs.gov/earthquakes/eventpage/us70007li1/executive
These in itself isn't worrisome. But might indicate a larger one in queue. We would know if frequency of these smaller quakes increase.
The last series of quakes in this region ended after a mag 8 quake in Nepal in 2015.
In 1850, a huge quake in this region created one of the large rivers we see now.