And what am I to say with respect to men, when the very elements themselves will disown their order? There will be earthquakes in every city, and plagues in every country; and monstrous thunderings and frightful lightnings will burn up both houses and fields. Storms of winds will disturb both sea and land excessively; and there will be unfruitfulness on the earth, and a roaring in the sea, and an intolerable agitation on account of souls and the destruction of men. There will be signs in the sun, and signs in the moon, deflections in the stars, distresses of nations, intemperateness in the atmosphere, discharges of hail upon the face of the earth, winters of excessive severity, different frosts, inexorable scorching winds, unexpected thunderings, unlooked-for conflagrations; and in general, lamentation and mourning in the whole earth, without consolation.
For, “because iniquity shall abound, the love of many shall wax cold.” By reason of the agitation and confusion of all these, the Lord of the universe cries in the Gospel, saying, “Take heed that you be not deceived; for many shall come in my name, saying, I am Christ, and the time draws near: go not therefore after them. But when you shall hear of wars and commotions, be not terrified: for these things must first come to pass; but the end is not yet by and by.” Let us observe the word of the Saviour, how He always admonished us with a view to our security: “Take heed that you be not deceived: for many shall come in my name, saying, I am Christ.”
Source: The End of the World (Pseudonymous) (New Advent)