STAFF CORRESPONDENT

Timely surveys, data collection, and analysis are crucial for preparing for potential major earthquakes, with Bangladesh sitting on a geologically active zone, said experts at an event yesterday.

Speaking at the Dhaka Reporters’ Unity, members of the Bangladesh Geological Survey also emphasised the need for geologists, researchers, planners, engineers, and other professionals to study the country’s geological conditions.

This would help evaluate the potential for major earthquakes and develop appropriate preparedness measures and recommended actions, they added.

Terming the recent earthquake a wake-up call, BGS leaders explained that earthquakes measuring 5.0–5.9 on the Richter scale are considered “Damaging Earthquakes,” while those measuring 6.0–6.9 are classified as “Destructive Earthquakes”.

“The November 21 earthquake was a Damaging Earthquake, with a magnitude close to that of a Destructive Earthquake. Although precise predictions of earthquake timing and magnitude are not possible, hazard-prone areas can be identified,” said Dr Anwar Zahid, general secretary of BGS.

Anowar said as Dhaka and its surrounding areas are densely populated, a major earthquake could cause widespread damage.

He said building owners often prioritise short-term gains during construction, ignoring rules as Rajuk turns a blind eye. After every disaster, experts raise alarms, and the agency vows action. But after some days, the dust settles, and the dangerous cycle continues.

Prof Badrul Imam, president of GSB, emphasised that earthquakes are a natural phenomenon, and occasional tremors are normal in a seismically active region like Bangladesh.

He stressed that instead of fear or exaggeration, the most effective protection lies in data collection, analysis, and proper preparedness.

Experts noted that Bangladesh’s geographic, geological, and tectonic position is highly complex, with many considering it to be located at a subduction-related plate boundary.

The subduction of the Indian Plate beneath the Burmese Plate began hundreds of thousands of years ago, resulting in the formation of the hills in Chittagong and Sylhet. The pressure from these two plates is ongoing, putting Bangladesh at risk of earthquakes.

The GSB leaders outlined several key recommendations, including conducting detailed surveys and research to determine potential earthquake magnitude and risk, identifying Bangladesh’s Other

SEE PAGE 9 COL 4