【英语时差8,16】智利地震如何使白天变短-上（在线收听）

 Powerful earthquakes-like the ones in Haiti and Chile in 2010-leave destruction in their wake. Buildings collapse, many people are injured and killed. But the chaos created by massive quakes isn’t limited to the regions where they happen. The Chilean earthquake, for example, was so powerful that it tilted the earth’s axis a few centimeters. What’s even more astonishing is that the quake shook time itself, causing our days to become a little shorter. How Is This Possible? As you may know, earthquakes happen when the tectonic plates that make up the Earth’s crust collide and grind against each other.