Think the 1994 Northridge quake was strong? How about Haiti's 2010 quake? This
United States Geological Survey video by NOAA employee Nathan Becker puts the energy released by earthquakes over the last 50 years in startling perspective. While I know that the scale that we use to measure earthquakes is not linear, it is difficult to make my brain believe it until I see it laid out like this. Take a look for yourself, and give thanks that you weren't in Chile in 1960 when the strongest quake ever recorded struck.
Via Paul Kedrosky