Given: The prophecy is true.
What did Jesus mean? I have an app that alerts me of any earthquake all over the world. Since I got the app, it is one earthquake after another all over the world. I would not know if not for the app or in the even of a big one -the news. But it seems that earthquakes have been going ever since the earth existed.
Any evidence of 1 century earthquakes that would have fulfilled the prophecy then that the Apostles could relate to?