On Oahu, WHEN a big hurricane hits the results will be devastating,
Unlike the mainland most of Hawaiis are are single wall wood construction. These homes will not be their anymore, They are old and under maintained. Most are not upto current code and have no hurricane clips or straps.
Hawaiis infrastructures aged, its not well maintained (leaning poles, cracked roads, rusting everything) and will be damaged beyond repair, more then likley requiring full replacement.
Hawaii has a tree problem, People love the prety trees, but they are to big and to close to roads and building, Because of the way streets are built these are often under concrete or around building and because they are growing over a lava bed the roots are very shallow. This means that they will easilt fall over in high winds and can/will damage infrastructure (poles and wire) and block roads, Many trees are allowed to grow around power line, some with wires running through the middle of the branches.
Oahu has 1 main dock, If it is damged in any way shape or form their is NO way to unload boats with supplies, Considering that 80%+ of our food is imported through this dock, their will be no help. when the power is knocked out, even if their is no damage top the dock, the dock cant function correctly.