[swaghauler]

In the Atlantic Ocean is the Island of La Palma (in the Canary Islands). On this island is the volcano known as the Cumbre Vieja. This 1,949m high volcanic ridge runs 25km from East to West along the island of La Palma. There is a "crack" in this ridge that would cause half of the volcano to slide into the sea if a sufficiently large eruption caused this "crack" to let go. It would be the largest landslide in human history...Followed by the largest tsunami ever recorded. Imagine the effects of a one to two kilometer high wall of water propagating all around the Atlantic.

Here's the scenario: Jihadists who want to deal The West a "death blow" have acquired an old Russian tactical nuclear weapon. One weapon won't do much against even one enemy...Unless the jihadists were able to lower it into one of the "cracks" on the slope of the Cumbre Vieja. The detonation would then create a "Mega Tsunami" which would smite all the infidels at once.
At this point, The Law of Unintended Consequences begins to take over. The huge volume of water surging onto the North and South American continents causes the West Coast to suffer "The Big One," and California falls into the Pacific Ocean. This causes a second "Mega Tsunami" to propagate across the Pacific Ocean striking the rest of the world with a 2000 meter wall of water. The jihadists who thought they would be protected from the original mega tsunami by the continent of Africa are now inundated from the East as they celebrate in the streets. It takes less than ONE DAY for the Mega Tsunamis to wipe out 80% of the World's population and completely "recarve" the world's topography. Islands are submerged, peninsulas (like Florida) are made into islands or eradicated entirely. Would North and South America still have a land bridge linking them? How many "lowland areas" (like Death Valley and Belgium) would now be "inland seas?" There are more than 300 nuclear reactors in the "devastation zone," each one a Fukushima Disaster waiting to happen. There would also be other earthquakes and environmental disasters to deal with. How many governments could survive this level of destruction?

The premise of this game would be survival in the aftermath of a near Extinction Level Event. The players are survivalists who "go to ground" in personal survival shelters to avoid the chaos of The Inundation War. Six months or a year after the worst of the events are over, they reenter the world to continue trying to survive.