数据显示，这块冰流宽约100公里，厚约800米。 每次移动时，冰流发出的震波波及整个南极洲。
They said the movement of a huge stream of ice, about 100km wide and 800m thick, creates seismic waves and can be felt through the entire Antarctic.
地震产生的冲击波在地面上迅速移动，不过电信号传递地更快，这使得预警信号能够超过地震波而传递到当地的民众那里。
Shock waves from a quake move quickly through the ground, but electronic signals are far faster, allowing warnings to outrun temblors.
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