This was the vision I was given:

The entire Gulf of Mexico collapses into the ground without warning. It sets off landslides that take out Ft. Lauderdale Fla all the way to Pensacola Fla then up to Jackson Miss across to Shreveport La. Then Tyler Texas to Odessa Texas and down to Monterrey in Mexico, down to Veracruz to the Yucatan and across to Lahabana Cuba. All sinks into the hole left by the Gulf of Mexico being swallowed into the ground. It sets off the New Madred which slices the country in half all the way up to the Great Lakes. It sets off a volcano in Washington but does not do anything to Yellowstone. Then a tsunami comes in from the ocean and covers the land all the way up to Colorado, Kansas and what is left of Missouri, the foot of Kentucky and all of Virgina and part of W. Virgina. The tsunami waves appear as huge waves of brown flowing over the map of the U.S. The loss of life was astronomical. The country was in devastation and it never recovered.