Global Earthquake Total Economic Loss Risk Deciles is a 2.5 by 2.5
minute grid of global earthquake total economic loss risks. A process
of spatially allocating gross domestic product (GDP) based upon the
Sachs et al. (2003) methodology is utilized. First the proportional
contributions of subnational units to their respective national GDP
are determined using sources of various origin. The contribution
rates are then applied to published World Bank Development Indicators
to determine a GDP value for the subnational unit. Once the national
GDP has been spatially stratified into the smallest adminstrative
units available, GDP values for grid cells are derived using Gridded
Population of the World Version 3.0 (beta) data population
distributions. A per capita contribution value is determined within
each subnational unit, and then this value is multiplied by the
population per grid cell. Once a GDP value has been determined on a
per grid cell basis, then the regionally variable loss rate as
derived from the historical records of EM-DAT is used to determine
the total economic loss risks posed to a grid cell by earthquake
hazards. The final surface does not present absolute values of total
economic loss, but rather a relative decile (1-10 with increasing
risk) ranking of grid cells based upon the calculated economic loss
risks. The dataset is a result of the collaboration among the Center
for Hazards and Risk Research (CHRR), International Bank for
Reconstruction and Development/The World Bank, and the Columbia
University Center for International Earth Science Information Network (CIESIN).