This is one of the 14 signs of the End Times.
http://www.tomorrowsworld.org/cgi-bin/tw/booklets/tw-bk.cgi?category=Booklets1&i...Fourteen Signs Announcing Christ's Return:
1. Wars, Violence and Lawlessness
2. Drought and Famine
3.
Earthquakes and Other Natural Catastrophes
4. Disease Epidemics
5. The Rise of an Aggressive, Fundamentalist Islamic Power
6. An Ascendant European Union Seeks Global Primacy
7. A Powerful Religious Figure Leads a Religious Revival
8. The Gospel of the Kingdom of God Preached to All Nations
9. When Faith Again Becomes a Matter of Life or Death
10. A Crisis Strikes Jerusalem
11. The Abomination of Desolation
12. The Collapse of the English-speaking Nations—The Great Tribulation
13. Heavenly Signs and the Day of the Lord
14. The Seven Last Plagues