Is it more difficult for some to accept fact.If tom morrow a team of Big Bang Scientist discovered the earth to be hollow how would this be perceived?....james the hollow earth manVolcanoes are cause by Hell enlarging itself. The center of the earth,s crust or the point of Gravitational Equillibrium may be about 1000 miles down. This top 1000 miles of mass,s gravity supports the 1000 miles below it causing a 4000 mile hollow in the center. As the volcanoes erupt the hollow increases in volume.The simplist approach to imagine the earth,s surface being made say of2000 mile diameter spheres. These would have a center of 1000 miles so with each placed in a circle to make the earth,s circumference fill in between with similar mass. This would leave a hollow and the 2000 mile thick crust would be supporting itself.