The 20th century saw 10 devastating earthquakes, each killing more than 50,000 men, women and children. The worst was the 1976 catastrophe that took about 650,000 lives in China. The other deadly temblors struck Japan, the former Soviet Union, Italy, Peru, Pakistan and Iran.
America is also in danger. Besides Los Angeles and San Francisco, other U.S cities that could experience major earthquake damage are Anchorage, Seattle, Tacoma, Portland, Las Vegas, Reno, Salt Lake City, Albuquerque, St. Louis, Memphis, Atlanta, Charleston, New York, Newark and Boston (from a Federal Emergency Management Administration study released in 2000).
Modern scientists are coming to understand more and more about fault lines and the stresses of plate tectonics. They are beginning to uncover some of the mysteries of what causes earthquakes. But scientific knowledge is not a substitute for an understanding of biblical prophecy.
Consider the prophet Isaiah's description of how the earth will be rocked and laid waste, most likely during the end-time fulfillments of Christ's Olivet Prophecy (Matthew 24, Mark 13 and Luke 21) and similar prophecies depicted in Revelation.
"The foundations of the earth shake. The earth is broken up, the earth is split asunder, the earth is thoroughly shaken. The earth reels like a drunkard, it sways like a hut in the wind; so heavy upon it is the guilt of its rebellion that it falls—never to rise again" (Isaiah 24:18-20 Isaiah 24:18-20  And it shall come to pass, that he who flees from the noise of the fear shall fall into the pit; and he that comes up out of the middle of the pit shall be taken in the snare: for the windows from on high are open, and the foundations of the earth do shake.
 The earth is utterly broken down, the earth is clean dissolved, the earth is moved exceedingly.
 The earth shall reel to and fro like a drunkard, and shall be removed like a cottage; and the transgression thereof shall be heavy on it; and it shall fall, and not rise again.
American King James Version×, New International Version).
As discussed above, time and chance and the unseen evil spirit ruler of this world play a part in disasters today. But the Bible talks about the ultimate cause of a series of end-time disasters being humanity's moral conduct. Mankind rebels against God and His way of life. We cannot deny that bad things happen when God's great spiritual law is continually broken. Notice verse 21: "In that day the Lord will punish the powers in the heavens above and the kings on the earth below."
Luke 21:25 Luke 21:25And there shall be signs in the sun, and in the moon, and in the stars; and on the earth distress of nations, with perplexity; the sea and the waves roaring;
American King James Version×may be describing end-time tsunamis. Jesus Christ said: "There will be signs in the sun, moon and stars. On the earth, nations will be in anguish and perplexity at the roaring and tossing of the sea" (NIV). Witnesses described the noise of the tsunamis in Southeast Asia as the roaring of a jet engine or a freight train. People are now much more aware of the deadly force of giant ocean waves.