what is the biggest earthquake on planet earth
Intro As massive and deadly as Japan's recent magnitude 9.0 earthquake was, it's not the world's biggest recorded quake. It is Japan's largest quake, but dating back to 1900, four other earthquakes of magnitude 9.0 or greater have ruptured across the globe, according to data from the U.S. Geological Survey (USGS). We countdown the top 10 biggest recorded earthquakes in the world.