'Occur' in the Bible

So he came near where I was standing, and when he came I was frightened and fell face downward; but he said to me, “Understand, son of man, that the [fulfillment of the] vision pertains to [events that will occur in] the time of the end.”

If a trumpet is blown in a city [warning of danger] will not the people tremble?If a disaster or misfortune occurs in a city has not the Lord caused it?