Gen 1:31 "And God saw every thing that he had made, and, behold, it was VERY GOOD."
Did you ever wonder if God had made everything very good, then where did earthquakes, radioactivity, volcanoes, hurricanes, and what we call natural calamities come from?
We believe that God says what He means and means what He says. So when He says His creation was very good, it truly was indeed. Such natural calamities were not part of that original creation.
We believe when God destroyed the world and saved Noah and his family, the fountains of the great deep broke open.
Gen 7:11 "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."