This one has exposed deep cracks in the state of California.

而这一次所暴露的正是加州内部的问题。

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Scientists warn the wetlands are losing the lining that once retained water, with deep cracks opening up in the worst areas.

科学家们对此提出警告，他们表示，湿地正渐渐失去它保持水分的那一层，而有些地方甚至已经露出了深深的裂缝。

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Farmers noticed that the well walls had deep cracks in them. A smelly gas came out of the cracks.

农夫注意到，水井的井壁上有深深的裂缝，裂缝里冒出臭气。

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Deep cracks beneath the waterline led to parts of the 80-year-old harbour wall collapsing in 2012.

BBC: Weymouth harbour wall: Warning over repair noise

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

With EGS, holes are drilled deep into hot rock and water is injected into the cracks.

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