The corporate authorities of any municipality may annually levy, for emergency services and disaster operations as defined in the Illinois Emergency Management Agency Act, a tax not to exceed 0.05% of the full fair cash value, as equalized or assessed by the Department of Revenue, of all of the taxable property in the municipality for the current year. However, the amount collectible under a levy shall in no event exceed 25? per capita. The annual tax shall be in addition to the amount authorized to be levied for general corporate purposes.