Seismic zoning maps are maps that show regions based on their earthquake risk. They indicate areas with different levels of seismic activity, helping engineers, planners, and authorities design buildings and infrastructure to resist earthquakes. These maps guide construction codes and disaster preparedness to reduce damage and protect lives.

Seismic Zoning Maps in Bangladesh: Understanding Earthquake Risk

Seismic zoning maps are tools that show areas based on their risk of earthquakes. These maps help planners, engineers, and residents understand which regions are most vulnerable, guiding safer construction and disaster preparedness.

In Bangladesh, the country is divided into three main seismic zones:

Zone 3 – Highest Risk Areas

These areas face the greatest earthquake risk:

1. Sylhet
2. Mymensingh
3. Northern districts

Zone 2 – Medium Risk Areas

These regions have a moderate risk of seismic activity:

1. Dhaka
2. Gazipur
3. Chattogram
4. Cumilla
5. Rajshahi

Zone 1 – Lower Risk Areas

These areas are less prone to earthquakes but are not completely safe:

1. Khulna region
2. Coastal belt

Important: Even though Zone 1 has lower risk, no region in Bangladesh is entirely free from earthquakes. Consulting seismic zoning maps is essential for safe building and planning.