That's the distance in miles away from the crater that ash plumes could cover if an explosive eruption occurs.

这是距火山口的英里数，如果发生火山喷发，火山灰流会覆盖住这。

Hopefully, these tools will help us better understand these volatile vents and their explosive eruptions.

希望这些工具能帮助我们更好地了解这些易挥发的喷口及其爆炸性喷发。

This is called an explosive eruption and we've seen it with Mount Etna in Sicily and Mount Saint Helens in the U.S. Explosive volcanic eruptions can be dangerous and deadly.

这称为爆发性喷发，我们在西西里岛的埃特纳火山和美国的圣海伦斯火山看到过这种情况。爆发性的火山喷发危险且致命。

Magma rich in silica is more viscous and can trap gases, leading to explosive eruptions, as seen in stratovolcanoes like Mount St. Helens.

富含二氧化硅的岩浆更加粘稠，可以捕获气体，导致爆炸性喷发，如圣海伦斯火山等成层火山中所见。

So, as that lava drops into the crater and into the basically a water table, let's talk about what could potentially happen as far as this explosive eruption here as we check in with our volcano.

所以，当熔岩进入火山口，进入到一个地下水位时，我们来讨论一下火山爆发时可能发生的事情。

Video from the country's ministry of environment and forestry captured the explosive eruption on Saturday, a burst of ash shooting 15 kilometers into the sky, a sign for people living in the volcano's shadow it's time to go.

该国环境和林业部拍摄的视频记录了周六的火山爆发，火山灰喷射到空中15公里，这给生活在火山活动范围内的人们一个信号——是时候离开了。