Volcanic eruptions are like fires in a chimney.

火山爆发就象烟囱里火焰样。

First up this Thursday, a volcanic eruption near Bali.

这个期四我们首先会关注巴厘岛附近火山爆发。

Once thought to ignite volcanic eruptions.

曾经被认为这能引起火山喷发。

The combined power of a million volcanic eruptions on Earth.

相当于地球上100万火山同时喷发时发出能量。

These shifts can potentially lead to earthquakes and volcanic eruptions.

这些变化可能会引发地震和火山爆发。

The most destructive volcanic eruption ever witnessed occurred in Indonesia in 1815.

1815年，印度尼西亚遭遇了有史以来最具破坏性火山喷发。

Large volcanic eruptions also added to the bad conditions.

大规模火山爆发也加剧了恶劣环境。

Ash from volcanic eruptions blocks out the sun, Cooling the earth.

火山喷发产生火山灰遮住了太阳 使地表温度冷却。

Scientists think that some of them were started by asteroid impacts or volcanic eruptions.

科学家认为其中些是由小行或火山喷发引起。

Possible causes include large volcanic eruptions and global warming.

可能原因包括大规模火山爆发和全球变暖。

After all, the islands were formed as a result of volcanic eruptions.

毕竟，这些岛屿是火山喷发结果。

Weird but true, some volcanic eruptions are so intense, they create lightning!

奇怪但真实是，些火山喷发强烈，它们甚至会产生闪电！

It's not the first massive volcanic eruption to cool global temperatures.

这并不是第次导致全球气温下降大规模火山喷发。

After all, heat is what often causes volcanic eruptions in the first place.

总来说，热量是引起火山爆发第诱因。

Perhaps the best-known level 6 volcanic eruption was the Krakatoa nightmare in 1883.

也许最广为人知六级火山爆发就是 1883 年如噩梦般喀拉喀托火山爆发。

One unpleasant element often ejected in volcanic eruptions is mercury.

火山喷发时经常会喷射出种不怎么好元素----汞。

Reports from New Zealand say volcanic eruption has left many people injured.

据新西兰报道，火山喷发已经导致很多人受伤。

They're formed from eroding lava and basalt rocks that come from volcanic eruptions.

它们是由火山喷发侵蚀熔岩和玄武岩形成。

A nd meteorologists say there are signs that a volcanic eruption is brewing.

气象学家表示，有迹象表明火山喷发可能在酝酿中。

Pompeii was destroyed by the volcanic eruption of Mount Vesuvius, which is near present-day Naples.

庞贝古城因维苏威火山爆发被摧毁，维苏威火山位于今天那不勒斯附近。