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。

Mount Fuji is a stratovolcano, a tall, steep-sided mountain formed by layers of volcanic materials such as ash and lava.

富士山是一座复式火山，是一座由火山灰和熔岩等火山物质层形成的高而陡峭的山峰。

You're more likely to come across their angry cousins, known as stratovolcanoes.

你更有可能遇到他们愤怒的表亲， 被称为成层火山。

Instead, they're other volcano types, like stratovolcanoes for example, which are a result of tectonic plate movement.

相反的，是其他种类的火山，例如，地层火山，是地球板块运动造成的。

At only half the size of Mount Everest, it was once a 4,000 meter tall stratovolcano which melted down to a 1109 meter deep caldera.

它只有珠峰的一半大小，曾是 4000 米高的成层火山融化成 1109 米深的破火山口。

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。

Major types include stratovolcanoes which often appear as tall steep mountains, shield volcanoes which are flatter and dome-shaped, calderas which are large depressions in the ground and mid-ocean ridges which are underwater chains of volcanic mountains.

层状火山，通常看起来像陡峭的高山；盾状火山，平坦呈圆顶状；火山口，地面上的大洼地；大洋中脊，海底的火山山脉。