I live in California, where we're still waiting for THE BIG ONE. Unfortunately it's simply not practical to carry everything a person might need after a natural disaster.
As far as things one could reasonably carry, knife wise, if I were trapped in a building I'd want a stout and pointy fixed-blade. One that could be used to punch/chop through a wall, and handle some moderate prying. Naturally it wouldn't be as good as a hatchet/axe or full size pry/crow bar, but those items might be impractical to carry.
I remember a story from 9/11 where people chopped their way through a wall using parts from a cleaning man's squeegee. I remember it was difficult and they had wished they had a knife.
Another item I would recommend is something with your name, blood type, any allergies, and emergency contact info on it (family names, addresses, phone numbers). Right this information down on multiple pieces of paper and carry them in different places on your person and in your stuff in little ziploc bags or clear plastic vials with "EMERGENCY INFO" written on them. I know people who have had such info engraved on military-style dog tags which they always wear, with extras secured in the laces of each of their boots and used as zipper pulls on bags and jackets.
Don't count on being conscious after an earthquake or it's aftermath to identify yourself or provide vital information to medical personnel. You could easily become one of those people who end up in a coma during a natural disaster that no one can identify. And don't count on your cell phone, or wallet to identify you. People still get robbed during natural disasters (perhaps more frequently, civilization and law enforcement tend to break down), and if you are unconscious, your bag and wallet could be stolen, and your pockets emptied.
As a general policy, I follow the philosophy- "Never put all your eggs in the technological basket". People tend to live through their phones and laptops, completely depending on them for everything (like storing important phone numbers and personal documents). But I can't count how many times I've seen where someone either lost their device, or it was stolen, and they are screwed because as they say- "my whole life was in there!".
I see you have a powerbank. I bought one recently and really like it (pictured below). The one I have can jump start multiple vehicles, charge a phone, power a laptop, and power any 12 volt device (I sometimes use it to power a portable tire inflator). It also has a built-in LED light and it can easily fit in my back pocket with room to spare. It came with a variety of attachments and adapters (just a few shown).
