Doubt THS would bother requiring such prep, because such disasters are rare and they can’t even get many hosts to do basics on welcome guides. If you’re someone who’s going to do sits in such conditions or in areas where such happen frequently, it would make sense for you to ask about such info and to prep yourself.
This thread might be useful: Natural disasters sit - #54 by ElsieDownie
Also, there’s TONS of info available online for various disaster prep, which anyone can search for. Of course, you need to have online access and some electricity source, so it pays to prep. There also are many apps and gov’t and weather agency alerts that you can sign up for, depending on where you’re headed.
I grew up on the Ring of Fire, where we also had frequent typhoons (which other folks often call hurricanes elsewhere), and used to work in news, when we’d often send folks into the worst disaster zones to do coverage. What we easily saw: Typically, people who stay calm and help one another tend to do much better.
While I was growing up, some typhoons left us amid lots of destruction, without electricity for weeks or months. We sometimes also lost water for long stretches, so we’d have to go get water or fire trucks would visit neighborhoods with water. The more clean containers you have, the better, because even if someone shares water, you need storage.