I think the normal basic prepper stuff applies

• have a properly stored supply of emergency water to last your household atleast a month. (You will want the correct opaque containers and add water purifier so nothing grows in it, regular bottled water isn't meant for long term storage)
• Have a stocked pantry of shelf stable dry-goods. Beans and rice are your friend.
• have methods to power devices off grid or in an emergency.
• analyze how you use things and plan how you can conserve in a disaster
• have a way to talk to your neighbors that do not rely on the grid like meshtastic or even radio
• help your neighbors out as much as you can, grow a community.