Earthquake and typhoon prep for short-trip travelers — what's actually worth doing beyond installing a weather app?

Japan-safe-travel guides usually start with "install a SIM that gets J-Alerts and download Safety Tips." Fine, but what else does a one-to-two-week traveler actually need? Specifically: knowing where the nearest evacuation site is for the hotel or rental you're staying in, what to do if a typhoon cancels your Shinkansen, when to actually leave a building during a quake. Concrete habits that have made a difference for travelers who happened to be here during something real.