What kind of measures need to be taken to ensure that the next earthquake poses less of a risk to Haiti?

Avoid making of multistory buildings, buildings having high elasticity and safety exit.

Explanation:

Avoid making of multistory buildings, buildings will be made having high elasticity and safety exit will be made in every architecture of building are the measures that helps in reducing the casualties and damages occurs if the next earthquake occurs in Haiti. Those regions where two tectonic plates are join together, no high building should be built because there is high possibility of earthquake in these areas so we have to build single story offices instead of building or building which can bear high frequency of earthquake.