I grew up in a geologically active region. The rule of thumb was to have enough stuff to survive 3 days, so food, potable water, medical supplies, batteries, fl

I grew up in a geologically active region. The rule of thumb was to have enough stuff to survive 3 days, so food, potable water, medical supplies, batteries, flashlights etc. Always having at least 3 days of absolute essentials is going to hold you over for 99.9% of all problems to give time for help to find you. It should be doable in Europe too.