MICHAEL GARNETT: My entire apartment started shaking and there was a huge boom. I was just terrified. I had no idea what was happening.

迈克尔·加内特：我的整个公寓开始晃动，还伴随着巨大的轰响。我非常害怕。我不知道发生了什么。

AZUZ: So if a meteor explodes in the atmosphere and no one's around to hear it, does it make a sound? NASA said it did. The fireball that blew up 16 miles over the earth's surface in December was the second most powerful one to enter our atmosphere in 30 years according to the space agency. So why wasn't this reported in December? Because scientists just noticed it. It was originally detected by military satellites and reported to NASA afterward. Why didn't pictures and video go viral on social media like those of other fireballs do?

阿祖兹：如果流星在大气中爆炸，而周围没有人听到，那爆炸有发出声音吗？美国国家航空航天局（简称NASA）的回答是有。去年12月，一颗火球在地球表面以上16英里处爆炸，NASA称这是30年来大气层中发生的威力第二大爆炸事件。那为什么12月没有报道？因为科学家刚刚发现这起爆炸。这一现象最初由军事卫星观察到，随后报告给NASA。为什么这次爆炸的照片和视频不像其他火球爆炸那样在社交媒体上疯传？

Because it happened over the Bering Sea in a pretty remote part of the world and relatively few people noticed. What exactly caused a blast that powerful? A meteor that scientists say was probably a few meters across. That's all it takes to release 173 kilotons of energy. And for reference one kiloton is equivalent to 1,000 pounds of TNT. Should you be worried about another one? Scientists say, no. Most fireball events are smaller. There have already been five note worthy explosions in 2019.

因为其发生在白令海上空，那里是世界上相当偏远的一个地区，发现的人相对较少。为什么这一爆炸的威力如此强大？科学家表示，这颗流星的直径可能有几米。其爆炸时释放出了173千吨的能量。为大家提供一下参考数据，1千吨能量相当于1000磅三硝基甲苯的威力。是不是应该担心再次发生这种爆炸？科学家说不用。大多数火球爆炸都较小。2019年已发生了5起值得注意的爆炸。

来源：可可英语