The blast caused earthquakes, tsunamis and pyroclastic flows that decimated the land and took tens of thousands of Indonesian lives.

火山爆发引发了地震、海啸和火山碎屑流，摧毁了这片土地，夺走了数万印度尼西亚人的生命。

In addition to lava, volcanoes may erupt with searing hot gas formed in the mantle, in a phenomenon called pyroclastic flow.

除了熔岩，火山喷发时还伴有在地幔中形成的灼热气体，这种现象叫做火山碎屑流。

Even worse is the damage caused by pyroclastic flows.

更糟糕的是火山碎屑流造成的破坏。

And one thing that's a threat to them are pyroclastic flows, when a mix of lava blocks, ash and volcanic gas rush down the slopes of a volcano.

对它们构成威胁的是火山碎屑流——即熔岩块、火山灰和火山气体的混合物冲下火山斜坡（的过程）。

About 92,000 people died due to pyroclastic flows, a tsunami triggered by the eruption, and famines from the weather changes.

大约 92,000 人死于火山碎屑流、火山爆发引发的海啸以及天气变化造成的饥荒。

Pompeii and nearby Herculaneum were utterly annihilated by a wave of  pyroclastic lava flow and buried beneath immense piles of ash.

庞贝古城和附近的赫库兰尼姆被一股火山碎屑熔岩流彻底摧毁，并被埋在巨大的火山灰下。

At least 14 people were killed in the eruption, nine are still missing, dozens were injured and officials say the mountain is still dangerous because it's produced at least two pyroclastic flows.

至少14人在火山爆发中死亡，9人仍下落不明，数十人受伤，官员称这座山仍然很危险，因为它产生了至少两股火山碎屑流。