Here is how an economy in total shutdown (except for the most essential businesses and governmental offices) would look if that economy had a democratically distributed income (DDI) in place. This response could be applied in the event of any natural disaster, however large or small, for affected people and businesses.

All individuals would continue to receive their full income. (Possible rewards for people who had to continue to work could be addressed at the time.)

All businesses would receive the money to continue to meet their essential obligations: continue to pay for essential benefits for employees (such as insurance premiums) and make any debt payments that came due without having to dip into their cash reserves or take on any debt.

Since government would not be funded by taxes or public debt, the funding of government (at any level) would not be affected.

In short, essential money would continue to flow in full as if nothing had happened. All of that would happen without one penny of debt being incurred. Everyone could face the situation with absolutely no increase in financial anxiety.