Data shmata. I didn't give two farts about my data.
Here's my experience from the Christchurch NZ quakes.
First, before the quakes, look around your house and pretend you were Hulk and wanted to throw furniture around. This is the stuff you have to secure : bookcases, televisions, freestanding pantries and wardrobes, fish tanks.
After the quake, we lost power for a few days, fresh water for a month, and weren't allowed to flush the toilet for three months. I had 20 litres of fresh water which was enough for me alone as my wife and infant child moved out of town for ten days. Plenty of tinned food and a camp stove if I needed it, but we have a propane cooktop in the house that would probably go for a couple months on the bottled gas.
Had to crap in a hole in the yard for a few days until the city distributed chemical toilets.
Cell networks were remarkably resilient. I would suggest keeping an older (non smart) cell phone around that you can pop your SIM into. My old phone would go days without a charge, smartphone needs charge daily.
Your issues are shelter, fresh water, food and food storage, sanitation, and communication. Think all these things through. I now have a 1000 litre rainwater tank and purifier. Also a hand cranked torch (flashlight) that doubles as phone charger. Get to know your neighbours as much as you can, you may need to rely on them. I know at least ten of my neighbours, and their relative skill sets (ones a HAM operator, for instance).
Be prepared. We got lucky.