On the night of August 17, 1959, at about 20 minutes before midnight, the ground in the vicinity of Yellowstone National Park began shaking violently. At the time there was a rumbling sound, something like a huge truck would make. Both the heaving of the ground and the noise were very frightening but lasted not quite 45 seconds.
1959年8月17日的晚上，大约午夜前20分钟，黄石国家公园附近大地开始猛烈摇动。同时，大地发出如同重型卡车发出的轰响。大地的升降和 啸叫都令人非常害怕，但是一切不超过45秒。
