What can be done to reduce the risk of earthquake damage in tectonically active regions like British Columbia, or flood damage in flood-prone areas along the Red River?

Answer 1

https://www.iclr.org/wp-content/uploads/PDFS/lessons-from-haiti-and-chile.pdf

https://www.canadiangeographic.ca/article/how-canada-preparing-next-big-earthquake

This is a good place to start.