Natural disaster Earthquake of Bangladesh

Bangladesh and the northeastern Indian states have long been one of the seismically active regions of the world, and have experienced numerous large earthquakes during the past 200 years. The record of approximately 150 years shows that Bangladesh and the surrounding regions experienced seven major earthquakes. The Great Indian earthquake in 1897 and the Srimongal Earthquake in 1918 were the most destructive. In the recent past, a number of tremors of moderate intensity had already taken place in and around Bangladesh. Dhaka city has been suffering from mild tremors in recent times.

Natural disaster Cyclone and Storm Surges of Bangladesh

The Bay of Bengal is a known breeding ground of tropical cyclone and hit the coastal area of Bangladesh during pre-monsoon (April and May) and post-monsoon (October and November). One of the reasons why it hits Bangladesh coast often is the conical shape of the Bay of Bengal. Over the last 50 years, 15 severe cyclones with wind speed ranging from 140 to 225 km/hr have hit the coastal area of Bangladesh of which 7 hit in pre-monsoon and rest in the post-monsoon season.