The destruction of old ocean floor happens in 'subduction zones.'

旧海底的破坏发生在“俯冲带”。

And I love traveling to subduction zones all over the world.

我喜欢去世界各地的俯冲区。

We used to think that tsunamis only strike in areas where you have subduction zones.

我们过去认为海啸只会发生在有俯冲带的地区。

Ide is now doing a similar analysis on earthquakes that all happened in the same geologic setting, like subduction zones.

井出哲现在正在对所有同一地质环境下发生的地震进行相似性分析，比如说消减带。

Why don't we see it distributed throughout the entire subduction zone?

为什么我们没有看到它分布在整个俯冲带？

However, we didn't actually discover the Cascadia subduction zone until 1988.

然而，直到 1988 年，我们才真正发现卡斯卡迪亚俯冲带。

But subduction zone earthquakes actually give us a warning because the vibrations they cause travel at different speeds.

但俯冲带地震实际上给了我们一个警告，因为它们引起的振动以不同的速度传播。

On Earth, this recycling process usually happens at subduction zones, where the oceanic crust slides beneath the continental crust, warming as it goes down.

在地球上，这种循环过程通常发生在俯冲带，即海洋地壳滑落到大陆地壳之下，并在向下移动的过程中变暖。

Unlike other subduction zones and this is the crease right here, this plate would be diving below this plate here, which is just sitting here.

不像是其他俯冲带, 汇聚点就在这里, 这个板块将潜于位于这里的该板块之下。

A lot of subduction zone earthquakes are 200 miles deep, and there's a lot of padding between the shaking part and the earth surface where we live.

大多俯冲带的地震有200英里深, 而且地震和我们生活的地球表面之间有很多填充部分。

So in this way, subduction zones are like portals into the deep earth, where materials are exchanged between the surface and the subsurface world.

所以这样一来， 俯冲带就像进入地球深处的门户，地表和地下世界之间进行物质交换。

The site of this destruction is another kind of plate boundary: a subduction zone. There one plate dives under the edge of another and is reincorporated into the mantle.

一块潜没的区域。在这里，一块板块潜没到另一板块的边缘之下并结合入地幔之中。

And of course I said yes, because, I mean, Costa Rica is beautiful, but also because it sits on top of one of these subduction zones.

当然，我说是，因为，我的意思是， 哥斯达黎加很美，还因为它位于这些俯冲带之一的顶部。

Most cities in the Northwest US are far back from the coast and the subduction zone, which means they'll be given a warning before the major shaking starts.

美国西北部的大多数城市都远离海岸和俯冲带，这意味着它们会在大地震开始前收到警告。

They all have something in common in addition to killing tens or hundreds of thousands of people, they are all subduction zone quakes, created when one tectonic plate is forced under another.

除了造成数万人或数十万人死亡之外， 它们都有一些共同点，它们都是俯冲带地震， 是在一个构造板块被压入另一个构造板块时产生的。

There's lots of desks to drop, cover, and hold onto for the students and for myself as well as just being in a modern building that has been retrofitted for an earthquake like the Cascadia subduction zone.

有很多桌子可以放下、遮盖和抓住，供学生和我自己使用，而且只是在一座现代化的建筑中，这座建筑已经为像卡斯卡迪亚俯冲带这样的地震进行了改造。

So we're a hundred kilometers back from the subduction zone, which like where I was in Japan, means that I have a I have a full minute of light P wave shaking before the S waves, the damaging waves, get to Corvallis.

- 所以我们距离俯冲带一百公里，这就像我在日本的地方， 这意味着我有一个完整的分钟光 P 波在 S 波， 破坏性波到达科瓦利斯之前摇晃。