In spite of how it sounds, these things are either happening frequently or there is always the potential for their occurrence. Yes, this is why we prepare, because this is actually normal, and there is always the potential for disasters.
I look at prepping (and many other aspects of life) with the concept of concentric rings. You are in the center, and you must be prepared, functional and healthy. If you are not, you will not survive, and you will not be able to help others.
The next ring is your immediate family and close friends. If you have taken care of yourself, you can help them prepare, and teach them why and how. As a group, you are better prepared than a bunch of individuals.
The next ring (at least for preparing for disasters) is your community. If everyone in your community has taken the necessary steps to prepare as individuals and families, then your community is very resilient. It will not require much outside help, and can actually take care of others.
You see how the concentric ring concept works. It can keep getting larger, but it all rests on those individuals and families.
There is nothing really new or unusual about these disasters listed. History is full of such events and circumstances. And life on Earth goes on.