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 Aug,1950||AssamEarthquake||8.5||780||Tremor throughout the country|