The plateau developed through three volcanic cycles spanning two million years that included some of the world's largest known eruptions.
2.
The third volcanic cycle began with the M�vatnseldar eruptions in 1724-1729 which commenced with an explosion that formed the crater lake V�ti.
3.
This was a much more intense volcanic cycle, which united the Macizo de Teno, Macizo de Anaga and Macizo de Adeje into one island.
4.
A second volcanic cycle called the " Post-Miocene Formations " or " Latest Series II, III, IV " began three million years ago.
5.
The second volcanic cycle, the Hverfjall cycle, began 2500 years ago with a gigantic but brief eruption, which formed the explosion crater ( tephra ring ) Hverfjall ( also named Hverfell ).
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