A thick layer of slippery clay on the ocean floor may have formed the weak spot that enabled a magnitude 9.1 quake to make such a devastating tsunami.

In the whole history of Earth's climate, few events are as extreme as those that geologists call "Snowball Earth." ...

It's possible the hidden freshwater reservoir has existed beneath the seafloor off the East Coast for 20,000 years.

Sinking clumps of dead ocean life have been shown to leak up to half their carbon and more than half their nitrogen when ...

Half of Earth’s oceans are more than 3.2km deep. Beneath them lie cavernous plains untouched by sunlight, vast gaping trenches made by Earth’s tectonic plates shifting, and ranges of underwater ...

Volcanic eruptions are significant geologic hazards. Underwater volcanoes are challenging to study, yet they play an integral ...

For most of deep time, spreading ridges released more carbon than volcano chains, changing how we interpret Earth’s climate history.

From space, the oceans look calm and simple — just endless blue. But when scientists zoom in with modern tools, that calm ...

Steep-sided underwater canyons on the continental margin bordering the Pacific Ocean off the US West Coast (State of Washington). These geological features were formed by erosion processes on the ...

Seabed 2030 aims to map the entirety of the ocean floor by 2030, but is it a possible endeavour – and what have they found so far?