1. Frequency of occurrence of earthquakes (Source: USGS)

2. Numbers of earthquakes worlwide between 2000-2010, magnitudes and casaulties (Source: USGS)

3. Distribution of the earthquake occurrences in the world

Image by NASA, NOAA, NSF, USGS

Blue lines show the plate boundaries and yellow dots show the locations of earthquake occurrences

4. Take away points

There is no relationship between occurrences of earthquakes and predictions of 2012. Earthquake are occurring in the earth from the day of its creation. Look at the figure 1 which shows the probability of frequency and magnitude of earthquake occurrence annually. 

Earthquakes are caused by release of energy due to the motion of tectonic plates in the earth. If you want to learn more about this you have to dig the theory of plate tectonics. The blue line in the figure 3 shows the tectonic boundaries where most earthquakes occur as these are the places of energy relase.

So don't waste your time being worried about 2012, however, we need to be prepared for the major earthquake strike in Nepal as it lies in one of the active tectonic boundaries of the world.