Silt turbidite (landslide) layers on the deep sea floor far off the coast from underwater landslides, likely caused by strong seismic shaking.

离海底滑坡不远的深海底床的淤泥浊积(滑坡)层很有可能是由强烈的地震晃动造成的。

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While the sea floor has had significant study, he points out little exploration has been done on this water above the deep floor.

他指出尽管对海床有丰富的研究，但针对海床上的水却甚少探索。

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The blobfish is practically all face — a pale, gelatinous deep-sea creature whose large-lipped, sad-sack expression seems to be melting toward the floor.

水滴鱼实际上全身都是一张脸，这种苍白、胶状的深海生物长有大大的嘴唇，忧郁的表情似乎马上就要融化在地板上。

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The pressures are too great, and no engineering or materials conceivable today would allow us to build livable-sized spaces on the deep sea floor.

FORBES: Why Don't We Spend More On Exploring The Oceans, Rather Than On Space Exploration?

They are also trying to understand the role that deep seas trenches play in earthquakes - these cracks in the sea floor are formed at the boundary of two tectonic plates and some believe the push and pull taking place deep underwater could be the cause of major earthquakes, such as the 2011 quake that resulted in such devastation in Japan.

BBC: James Cameron back on surface after deepest ocean dive

On Earth, sea-floor spreading is fuelled by molten rock upwelling from deep inside the Earth.

BBC: Enceladus has 'spreading surface'