The Asian Disaster Reduction Center (ADRC) Natural Disasters Data Book 2011 provides the statistical perspectives in figures and tables for 2011 as well as for the period 1975-2011 based on data obtained by EM-DAT.
According to EM-DAT, 196 natural disasters occurred in 2011 worldwide, killing about 28,800 people and affecting over 85 million people. The estimated amount of economic damage came close to US$290 billion.
The year 2011 sees two large-scale disasters in Asia; the Great East Japan Earthquake and subsequent tsunami in Japan and flood in Thailand, which claimed 20,319* and 813 lives, affected over 400,000 and 9,500,000 people while bringing about economic damage worth US$210 billion and US$40 billion respectively.
By region, Asia is the highest in the indices of disaster occurrences and number of people affected, and economic damage. Asia accounts for 44.4 percent, occurrences; number of people killed, 82.0 percent; number of affected people, 94.0 percent; and amount of economic damage, 88.7 percent.
Worldwide disaster trends in composition of indices and top shares of impacts vary by disaster type. For instance, flood made up the largest share of 41.8 percent of all disaster occurrences; earthquake, 71.9 percent of number of people killed; flood, 56.7 percent of affected people; and earthquake, 75.9 percent of total amount of economic damage. This trend is largely attributed to the earthquake and tsunami in Japan and flood in Thailand.
The indices show a similar trend within Asia in 2011, and to the past trend except for 2010 in the world in the long term. In all categories, hydro meteorological disasters such as flood, storm, and drought make up a substantial portion of the total occurrences and number of affected people. On the other hand, earthquake and storm bring about largest shares in number of people killed and economic damage.
Data Book 2011 also contains tables of the 25 worst disasters by number of people killed and total affected people, economic damage, and their respective ratios to population and gross domestic product. It also includes tables of 2011 disasters in ADRC member and other Asian countries sorted by country and disaster type.
*18,812 as of 26 June 2012 by the Government of Japan (Link)