On January 12, 2010, an earthquake measuring 7.3 on the Richter scale hit Haiti. Watch the video to the right to see where quakes come from.
Richter Scale
The Richter scale measures the strength of an earthquake on a scale from 1.0 to 9.0 with 1.0 being the weakest. The scale grows by powers of 10. This means that an earthquake measuring 7.0 on the Richter scale is 10 times more powerful than one that measures 6.0.
This website undertaken with the financial support of the Government of Canada through the Canadian International Development Agency (CIDA).