Dhaka, Nov. 23 -- Central Bangladesh, including capital Dhaka, the most densely populated megacity (population above 10 million) in the world has been shaken by a series of earthquakes over just two days, raising serious concerns about the city's preparedness for a major tremor.

Experts have warned that the overpopulated capital of Bangladesh could become a hotspot for earthquake vulnerability, as nearly 90% of its older buildings were constructed without adhering to proper building codes.

Concerns intensified following the powerful, 5.7-magnitude earthquake that struck at 10:38am on Friday, shattering the usual weekend calm and turning the holiday into a frightening experience for residents of the capital.

According to the Bangladesh ...