Friday's tremor laid bare not only the vulnerability of these structures but also the failure of authorities to act despite repeated warnings.

The Rajdhani Unnayan Kartripakkha (Rajuk) and the two Dhaka city corporations have yet to demolish the 321 unsafe buildings the government wanted to see knocked down by May 27.

The buildings constructed with high-weight bricks are highly vulnerable to earthquake, says a seismic expert here on Sunday.