The Natural Disasters Economic Losses Index (NDELI), released by risk intelligence and ratings company, Maplecroft, evaluates the economic impact of earthquakes, volcanic eruptions, tsunamis, storms, flooding, drought, landslides, extreme temperatures and epidemics between 1980 and 2010.
The index measures the risk of economic losses from damage costs and deaths caused by natural disasters to reflect both the direct economic impact of natural disasters on property and infrastructure, plus the indirect economic impacts on populations. To provide an accurate picture of the global situation the NDELI has been split into two rankings; one measuring the risks to the 87 countries that suffer a high frequency of natural disasters; the other evaluating the 116 countries that experience less than one event per year.