Michael Thorne, a geologist at the University of Utah in the United States, discovered the formation of the super-volcano underneath the Pacific Ocean when he and his colleagues studied the intense seismic waves in the Earth's crust, Stuff reported.

Figure illustrates a super-eruption from beneath the Earth's crust. (Photo: IOL)

At least two huge stone blocks - each block has an area equivalent to a continent - are crashing into each other in the process of moving at the boundary between the mantle and outer core of the earth. Where they come into contact with is located in the north of New Zealand and at a depth of about 2.900km from the ground. Due to the collision, a region of molten rock is formed. Area can sit up to the surface and erupt, causing a very large area of the earth is covered by dust or paste stones.

"Such an eruption could cause mass extinction status on the planet," Thorne said.

However, Thorne said that people should not worry, because super-volcano at the bottom of the crust can only erupt after 100 to 200 million years.

In geology, the Earth's mantle is the thick ice crust about 2.900km, accounting for nearly 70% of the planet's volume. It lies beneath the crust. Earth's outer core is liquid and software located on the inner core (solid). In the core is in the same part of the globe and can rotate at a rate of slightly higher than the rest of the planet.