Their suggestions came from a seminar titled 'Possibility of Earthquake in Dhaka City: Possible Damage and Our Responsibility' at Geology and Environment Department of Dhaka University.

The Volunteers Against Disasters (VAD), a forum of the third year students of the department, organised the seminar as many city dwellers fear that a powerful earthquake may hit the capital at anytime.

Professor Aftab Alam Khan of Soil Science Department said the tremors that hit the capital in the last 100 years measured between 4 and 5 or a little bit above on the Richter scale.

"If an earthquake with the magnitude of over 6 hits the capital, the causalities would be too high because of unplanned construction of high-rise buildings," he said.

Prof M Abdur Rob of Geology and Environment Department said more than two millions people of the capital would directly be affected if a big earthquake rocks the city.