The earth is made by God perfectly. It is not like this before.
First of all, I want yo invite your attention to what happened during the time of Noah. It was accepted by almost all believers of the bible that it is a global flood. A global flood not a local flood. A flood can be called also a natural disaster and if we are going to expect that is global flood the more it will be emphasized that it is a natural disaster. If it is not local than it is a natural disaster.
Why? Because q local flood may be caused by a breaking up of a dam just like what happened some time ago in a particular place where a dam has been broken, and a whole village was washed up by the dam which broke.
It cannot be called a natural disaster, it can be called a manmade disaster. The breaking of a dam because of the inferior construction materials that were used is caused by man. A whole village was washed away. Now, if it is a local flood during the time of Noah when there are no dams yet that were erected. Even if it is local flood, it is not a manmade disaster but a natural disaster. If you are one of those who believed that it is a global flood
Then it is emphatically a natural disaster.
But what is my understanding our understanding of such disasters? Genesis 7 verse 11 says, in the six hundredth year of Noah' s life, in the second month, the seventeenth day of the month, the same day were all the fountains of the great deep broken up, and the windows of heaven were opened.
In order to sustain the flood that will eliminate all flesh,save those that are in the ark, according to the bible in Genesis 7 verse 11 it what we call as a tectonic plates of the earth. It is what the science call tectonic plate of the earth. They are broken and whenever these tectonic plates are moving it may cause earthquakes.