What can individuals do to improve their community’s resilience — whether that be in Portland or elsewhere?
I would suggest one of the 1st steps is to re-enforce the school buildings to withstand an earthquake, use the food certified kitchens in the schools to process locally grown food, and store emergency provisions at the schools.
If you mount solar PV panels on the roofs and place HAM radios there you can be fairly sure of having islands of communication even if things go really sideways.
You would need to have rain water cisterns at the schools, which could also be used for the urban orchards and the veggie gardens.
More broadly speaking, knowing your neighbors and being on good terms with them is possibly the 1st thing to do. It’s only then that conversations about sharing resources can be possible.
It sounds like you’ve picked schools as the epicenter for resilience in communities.