像宽干谷这样爆裂的火山口形成于蒸汽喷发的过程中，在那里，上升的岩浆与地表下的水接触形成了蒸汽喷发。

Volcanic explosion craters such as Dallol form during phreatic eruptions—where rising magma comes into contact with water beneath the surface of the Earth, causing a steam explosion.

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最近的火山喷发不同于普林尼式火山喷发，不属于裂缝喷发，而更像是管道爆裂。

The recent eruptions hadn't been classic, spouting-out-the-top types, so-called Plinian eruptions, but rather fissure eruptions, like bursting pipes.

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