I find it interesting in the Book of Revelation that God has an ANGEL over the waters of the earth. There are also angels posted at the Great River Euphrates. God knows how valuable our water supply is for the health of the nations. Perhaps God has also posted ANGELS over the teutonic plates of the earth and when He says SHAKE, they shake! Maybe what those lights are - is the presence of the angel getting ready to let loose with the plates!
 
Just a thought...
 
Rene