A Huge Water Reservoir Is Hidden Inside the Earth and May Contain Three Times the Volume of the Oceans, Study Suggests

Written by Ruth Rodrigues

Published on 03/08/2025 at 11:17

Pesquisadores encontram evidências de que água pode estar armazenada em minerais a centenas de quilômetros de profundidade, revelando um ciclo hidrológico profundo e pouco conhecido. Fonte: gerado por Inteligência Artificial

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Researchers Find Evidence That Water May Be Stored in Minerals Hundreds of Kilometers Deep, Revealing a Deep and Little-Known Hydrological Cycle.

Scientists have announced new evidence that a vast reservoir of water may be hidden deep within the Earth. According to a study published in the journal Communications Earth & Environment, this subterranean reservoir could contain a volume up to three times greater than all the oceans combined.

However, the water would not be in a liquid state. It would be trapped within the crystalline structure of minerals found between the upper and lower mantle, about 700 kilometers deep.

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How Water May Have Reached the Interior of Planet Earth?

According to researchers, the process of subduction – when a tectonic plate slides under another and sinks into the Earth’s interior – may have been responsible for transporting water from the surface to these deep regions.

This theory was strengthened by the analysis of rock samples collected in southern China, in the Emeishan Igneous Province. The results showed chemical compositions different from the typical ones of the Earth’s mantle, closer to those of subducted oceanic rocks.

The study highlighted the presence of ringwoodite, a mineral that acts like a sponge capable of storing water.

Identified in samples from the mantle transition zone, it reinforces the hypothesis that part of the planet’s water may have internal origins, not just external, as previously believed.

Previous Research and New Possibilities About the Water Reservoir

Seismic investigations conducted in 2014 had already indicated the presence of water in this region. At that time, analyses using thousands of sensors showed that earthquake waves behaved in a way consistent with the existence of moisture.

Now, the new data deepens this line of research, expanding the understanding of the water cycle on the planet.

According to experts, understanding this reservoir may help unravel the dynamics of the Earth and its geological evolution.

Additionally, other locations, such as the Columbia River Igneous Province in the United States, may hide similar clues. Scientists say that new studies are essential to identify the true size of this water stock and understand how it influences the planet’s history.

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A Huge Water Reservoir Is Hidden Inside the Earth and May Contain Three Times the Volume of the Oceans, Study Suggests

Researchers Find Evidence That Water May Be Stored in Minerals Hundreds of Kilometers Deep, Revealing a Deep and Little-Known Hydrological Cycle.

How Water May Have Reached the Interior of Planet Earth?

Previous Research and New Possibilities About the Water Reservoir

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A Huge Water Reservoir Is Hidden Inside the Earth and May Contain Three Times the Volume of the Oceans, Study Suggests

Researchers Find Evidence That Water May Be Stored in Minerals Hundreds of Kilometers Deep, Revealing a Deep and Little-Known Hydrological Cycle.

How Water May Have Reached the Interior of Planet Earth?

Previous Research and New Possibilities About the Water Reservoir

Engineers want to carve through Africa with a giant canal to bring water from the world’s second-largest river to a dying lake on the edge of the Sahara Desert that has already lost 90% of its water.

Dissatisfied with seeing people sleeping on the street, a man named Ryan Donais started building small mobile homes so that homeless people can escape the cold, each equipped with a bed, running water, electricity, and heating.

Workers were opening a modern road in Dover when they found, 6 meters below the asphalt, a 3,500-year-old boat made of stitched oak and plant fibers.

A giant brown band visible from space, approximately 8,850 kilometers long, connected Africa to America in the Atlantic Ocean, and satellites revealed that it is neither land nor pollution, but the largest accumulation of seaweed in the world, which broke records in 2025.

Two 17-year-old Kenyans use coconut shells, corn cobs, and recycled materials to create an exhaust filter that reduces 93.3% of pollutant particles and wins an environmental award in Africa.

Consumers eat six times more chicken than in the 1960s, global meat supply quadruples in 60 years, and FAO report reveals the invisible cost on the plate: livestock could drive 80% of the increase in agricultural emissions over the next decade.

Motorcyclist sees excavator arriving at the edge of a river in Bosnia, calls neighbors in minutes and turns a hydroelectric project into a resistance lasting more than 10 years with five expired concessions.

An ancient underground sea of oil could become the new “liquid mine” for electric cars: a USGS study points to up to 19 million tons of lithium hidden beneath Arkansas, sparking a billion-dollar race for batteries without opening a single crater.

The World Cup will serve as a “laboratory” for 5G in 2026, with 48 teams, 104 matches, and mobile networks being tested in stadiums, airports, fan zones, subways, and hotels in the USA, Canada, and Mexico.

Oil platform 300 km off the coast generates energy like an isolated city at sea: gas that rises with the oil drives turbines, heats potable water, and keeps 200 people working, but a failure can cost millions per day.

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