History of Earthquakes in Bangladesh

History of Earthquakes in Bangladesh

During the last 150 years, seven major earthquakes (with M>7.0) have affected the zone that is now within the geographical borders of Bangladesh. Out of these, three had epicenters within Bangladesh. The earthquakes and their effects are described in Table .

 

However, the recent awareness in Bangladesh of possible earthquake risks and necessary preparations has been due mainly to the devastating earthquakes that hit India in 2001, South-East Asia (particularly Indonesia, Sri Lanka and India) in 2004 and Pakistan in 2005. Reports by Bilham and co-workers have indicated that Bangladesh is under major seismic risk, with earthquakes of magnitude 8.0 or more already overdue in the Eurasian and Indian plates.

Table : List of major Earthquakes affecting Bangladesh
Date Name ofEarthquake Magnitude(Richter) Epicentral distance from Dhaka (km) Affected zone
10th Jan, 1869 CacharEarthquake 7.5 250 Tremor mainly in Sylhet
14th July, 1885 Bengal Earthquake 7.0 170 Damage in Jamalpur Sherpuur, Bogra
12th June,1897 Great Indian Earthquake 8.7 230 Damage in Sylhet, Mymensingh
8th July,1918 SrimongalEarthquake 7.6 150 Tremor in Sylhet
2nd July,1930 DhubriEarthquake 7.1 250 Damage in Eastern part of Rangpur
15th Jan,1934 Bihar-NepalEarthquake 8.3 510 None
15th Aug,1950 AssamEarthquake 8.5 780 Tremor throughout the country