测量员从海岸向内陆行进数千英里，每增加几英尺就停下来测量海拔，每增加一英尺就用两根杆子做标记。

Surveyors marched inland from the coast for thousands of miles, stopping at increments of as little as a few feet to measure their elevation, and marking each increment with two poles.

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通过测量因纳斯卡板块挤压海岸发生碰撞造成的地面的缓慢上升与下降，他们能够估算压力的实际聚集速度。

By measuring the slow rising and falling of the ground as the inexorable collision of the Nazca plate squeezed the coast, they could calculate how fast strain was actually building.

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这些特性很难被模型化，如果你希望自己的模型能够更准确的话，最好是在海啸远离海岸没有被上述特性影响时予以测量。

That stuff is really hard to model. And if you want to make your model better you want the measurement of the tsunami out in the ocean where it is not affected by that stuff.

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