The VEI scale begins at zero.

VEI等级从0开始。

The VEI scale does not have an upper limit.

VEI等级没有上限。

At a VEI of 6, an eruption can change the world.

在VEI六级，一个爆发能够改变世界。

Mount Tambora, a large stratovolcano erupted with a VEI measurement of 7.

一座巨大的层状火山，坦博拉火山爆发了，VEI等级为7级。

A VEI 2 eruption would fill four hundred full Olympic swimming pools with lava.

一个VEI二级的喷发能用熔岩填满四百座奥林匹克游泳池。

On the volcanic explosivity index, the 1815 eruption of Mt. Tambora earned the highest ranking ever recorded with a VEI 7 classification.

根据火山爆发性指数，1815 年坦博拉火山的爆发以 7 级火山爆发指数获有史以来的最高排名。

The chance of a VEI 8 eruption in the next few hundred years is less than 2% and more importantly, it would not come as a sudden surprise.

接下来数百年会发生VEI八级火山喷发的机率低于百分之二，更重要的是，这类喷发不会突如其来的发生。

Scientists love to put big booms on a scale and came up with a logarithmic scale that measures the volume ejected during an eruption: The Volcanic Explosivity Index, or VEI.

科学家们喜欢把大爆发放在一个刻度上，并提出了一个对数刻度来测量火山喷发期间所喷出的体积：火山爆发指数，又称VEI。