The San Francisco 1906 earthquake response is considered a turning point in natural-disaster response, for multiple reasons. It was arguably better organized and better documented than any previous major natural disaster, and employed a remarkable, successful program of temporary camps equipped first with tents and then quickly with wooden small homes designed to be movable and offered on rent-to-own terms to occupants.
An emergency shelter is a place for people to live temporarily when they cannot live in their previous residence, similar to homeless shelters. The main difference is that an emergency shelter typically specializes in people fleeing a specific type of situation, such as natural or man-made disasters, domestic violence, or victims of sexual abuse. A more minor difference is that people staying in emergency shelters are more likely to stay all day, except for work, school, or errands, while homeless shelters usually expect people to stay elsewhere during the day, returning only to sleep or eat. Emergency shelters sometimes facilitate support groups, and/or provide meals.
Post-disaster emergency shelter is often provided by organizations or governmental emergency management departments, in response to natural disasters, such as a flood or earthquake. They tend to use tents or other temporary structures, or buildings normally used for another purpose, such as a church or school. These settlements may be inhabited for the entire duration of the reconstruction process and should be thought of more as settlements than shelter, and need to be planned with respect to water / sanitation, livelihoods.
-Wikipedia, "Emergency shelter" accessed 21 March, 2020.
Wikipedia (En). "Emergency shelter." accessed 21 March, 2020. https://en.wikipedia.org/wiki/Emergency_shelter