General Discussion

Even in large cities, if there's natural topography, it can be dangerous.
I live in San Diego; 3 million people living on 6 mesas (200+ ft hills with crinkly outcropped edges dropping into canyons), in creek-bed valleys or canyons, or on coastal peninsulas. Too many people packed into dense little 1/2 or single sq.mile or so residential communities with only one or two main roads connecting either to large "strip road" (former highway), highway or freeway that can get them to safety or resource areas.

Currently, because I used to camp for up to a week, I have a Sterno stove with about 2 weeks fuel, 2 large coolers, a small Costco solar RV setup with with a "night use' battery pack for phone/laptop charging and spouse's CPAP if needed. We still have the cobbled styrofoam cooler/battery desk fan "swamp unit" from when we lived in a place with no AC. I have an axe and billhook from when I had a yard with trees, and a 50lb pull bow, a longsword and a couple 6" daggers from when I did medieval recreation, if I really need "protection" All stuff I already had for hobbies, not prepping.

And I'm thinking of getting a 3-wheel bike with a large back basket for hauling larger items around, like I did when I was younger living on base. They are sturdy and stable over dirt or damaged roads, and can be adapted to be electric to assist old joints when going up hills and can double as an emergency transport vehicle (my neighbor has enough tools and plywood to turn one into a Tuk-Tuk) or haul a small cart behind them if needed.
That's enough "prep" that I can think of for a city dweller.

Sanitation, medicines and water will always be an issue, properly prepped or not. City dwellers - heck, most and town/rural dwellers - don't have wells or easy access to water after a few days (the 50 gallon drum of water that can last a family of 4 a month is impossible to keep in an apartment and difficult in a house as it is), and the emergency will inevitably always occur the week before the prescription refill is ready...
The only good thing about being in a city in a natural disaster is that the city is likely to get services back quicker than suburban or rural locations. More infrastructure and scroungable resources available.

Haele