Earthquakes Are Not A New Thing.
Before I go any further it must be noted that earthquakes are really quite common throughout history. To say that there will be earthquakes as a sign of the time when Jesus will return for the second time is, for some not a very good indication of how close we are to that momentous event. However, in all three of the Olivet Discourses, Jesus went out of His way to mention this as one of the signs of the end of the age:
Nation will go to war against nation, and kingdom against kingdom. There will be famines and earthquakes in many parts of the world. 8 But all this is only the first of the birth pains, with more to come. (Matt 24:7-8, NLT)
Then he added, “Nation will go to war against nation, and kingdom against kingdom. 11 There will be great earthquakes, and there will be famines and plagues in many lands, and there will be terrifying things and great miraculous signs from heaven. (Luke 21:10-11, NLT)
Nation will go to war against nation, and kingdom against kingdom. There will be earthquakes in many parts of the world, as well as famines. But this is only the first of the birth pains, with more to come. (Mark 13:8, NLT)
As you can see, it was recorded by all three of what is called the synoptic Gospels and the verbiage is not all that different. In the King James version, the one I grew up with for the most part it reads like this:
For nation shall rise against nation, and kingdom against kingdom: and there shall be earthquakes in divers places, and there shall be famines and troubles: these are the beginnings of sorrows. (Mark 13:8)
Great Earthquakes are predicted as Jesus said.