It covers an area of almost 14 million square kilometres and contains 30 million cubic kilometres
Termed the Hilina Slump, this could drop 12,000 cubic kilometres
of rock into the Pacific Ocean, generating a megatsunami that would propagate around the Pacific Ocean and reach the western seaboard of North America in a matter of hours, inundating coastal communities.
The largest recent volcanic eruption was Mount Pinatubo in the Philippines, which blew about ten cubic kilometres
of ash and gas into the upper atmosphere in 1991.
However, the majority - about 90 cubic kilometres
- was as a result of groundwater pumping.
When Mount Pinatubo, Philippines, erupted in 1991 it pumped out an estimated 10 cubic kilometres
When we consider that the earth's atmosphere has been calculated as 51,006,560,000,000 cubic kilometres
it must surely be obvious that the puny frolics of man can have no cataclysmic effect on whether it is hot or cold at any particular time.
It has been estimated that by 2025, the demand for water will have reached 1,050 cubic kilometres
a year, but supply will only be 700 cubic kilometres
It has a surface area of 371,000 square kilometres (143,244 sq mi) and a volume of 78,200 cubic kilometres
(18,761 cu mi).
They erupt rarely and eject hundreds of cubic kilometres
of lava from the earth.
As much as 600 cubic kilometres
of water - one and a quarter times as much as is contained in Lake Erie - might have gushed from cracks in the ground near the Martian equator.
The most harrowing example of destroying vital underground water resources is Colonel Gaddafi's 'Madman River' with its 4,200-kilometre network, planned to release 60,000 cubic kilometres
of underground water stored during hundreds of thousands of years.
Supereruptions generally eject at least 450 but sometimes even several thousands of cubic kilometres
of rock material and ash to the surface and into the atmosphere.
UN-Water, a coordinating body for water efforts by UN groups, says Earth has about 35 million cubic kilometres
(eight million cubic miles) of fresh water -- 70 percent of it locked up in ice and permanent snow cover.
Razis said that for three years now his team has been participating in a European partnership of 24 universities, to create an under-sea neutrino telescope of an overall volume of 1-2 cubic kilometres
Estimated monthly changes suggest it is melting at a rate of 239 cubic kilometres