2031 East Coast Tsunami (By: LandonExists)

'NOTE: This is not canon in my timeline. Also, this is really unrealistic and uses a pretty "eh" report from 2001 for numbers.'

The 2031 East Coast Tsunami occurred on April 29, 2031. The collapse of the Cumbre Vieja volcano in the Canary Islands caused a tsunami to rampage through the Atlantic Ocean, killing millions.

Volcanic Eruption and Collapse of Cumbre Vieja
On April 29, 2031 at 4:27 PM WET, Cumbre Vieja erupted. While at first, the eruption was thought to be the biggest problem, local officials were proven wrong when 500 cubic kilometres of rock collapsed into the ocean. At 4:29 PM, a 900 meter tall, or 3,000 feet tall dome of water rises above the landslide. However, by 4:32 PM, this had shrunken to 500 meters, or 1,600 feet. The first reported landfall of the tsunami was at 4:37 PM, when the tsunami struck the three western Canary Islands. Due to the sudden and un-warned chain of events, the entire island chain's population died.

Africa is hit
15 minutes after the tsunami begins, it crashes into the Western Coast of Africa, reach 75 meters tall. Multiple towns are destroyed. Nouakchott, Casablanca and Rabat are completely destroyed. Death counts are high here as residents of coastal towns had only around a half-hour to evacuate.