Numbers 16:34
"And all Israel that were round about them fled at the cry of them: for they said, Lest the earth swallow us up also."
Cross References (ranked by relevance)
Zechariah 14:5
And ye shall flee to the valley of the mountains; for the valley of the mountains shall reach unto Azal: yea, ye shall flee, like as ye fled from before the earthquake in the days of Uzziah king of Judah: and the LORD my God shall come, and all the saints with thee.
Isaiah 33:3
At the noise of the tumult the people fled; at the lifting up of thyself the nations were scattered.