I currently have 5 bases as I make my way to the friendly ship. It's made me realize there are a LOT of messages that don't give any indication of their location. Off the top of my head they include: trading ship arrival, food perishing in freezer, heat wave, chased person who wants to join, etc.
These messages require me to switch bases hunting for the right one. The location should be included in most, if not all, messages. As an extension to this, you should include the name of the town above the colonist groups so you can quickly click to the right base by name.
These are both great ideas