John Chrysostom — as excerpted in the Catena Aurea on Luke 21:9-11

“(Hom. 11. in Acta.) For an earthquake is at one time a sign of wrath, as when our Lord was crucified the earth shook; but at another time it is a token of God’s providence, as when the Apostles were praying, the place was moved where they were assembled. It follows, and pestilence.”