The Centre for Research on the Epidemiology of Disasters defines an earthquake "disaster" as a seismic event that results in at least one of the following: 10 or more people killed, 100 or more people affected, the declaration of a state of emergency, or a call for international assistance.
22 Setheo sa Centre for Research on the Epidemiology of Disasters se tlhalosa "masetlapelo" a thoromo ya lefatshe e le thoromo ya lefatshe e e felelang ka sengwe sa dilo tse di latelang: fa go swa batho ba le 10 kgotsa go feta, fa go amega batho ba le 100 kgotsa go feta, fa go dirwa kitsiso ya gore go na le seemo se se masisi sa tshoganyetso kgotsa go kopiwa thuso kwa dinageng di sele.