David Eddings Wiki

The Cracking of the World was a disastrous event, which occurred when Torak attempted to split the land and seas using the Orb of Aldur to separate the Angaraks from the Alorns and other races. 

The terrain and geography of the world was changed indefinitely. The seas flooded the continent, creating smaller a smaller landmass. Earthquakes shook the earth, and the majority of the population of the world died. 

Belar and Aldur created new mountains to contain the ocean before it flooded too much of the land.

Upon using the Orb, Torak was blinded and maimed.