What If: The Earth Went Through A Biblical Flood
To be fair, in pretty much every religion and even in history, there are stories about a “great flood.” The stories might differ a bit, where some claim the whole world flooded while others claim a specific region did. It is really all in what you want to believe. But let’s go with the Christian version, involving Noah, his great ark, and the flood of 40 days and 40 nights. If this happened, some great event would need to cause it as this is a flood of the entire world. Let’s say two large meteors broke through and landed in the ocean, coming with their own water. They also land in both artic areas and melt all the ice.
This would likely result in flooding, but it would first start tidal waves that will drastically hurt cities near shores worldwide. They’d completely flood and we’d likely see all land underwater for a short time. Water would go down a bit, but we could assume in the U.S. that both the East and West coasts would be completely underwater. The water might begin to freeze up again one day, allowing these shoreline cities and states to rise back up. But not for a while. Major electrical grids, oil lines, and much more would be hit hard. Many plants and animals would be hit hard and we’d be in an extinction-level event.