The USGS has been producing all sorts of data and making it accessible for decades. It is an example of international collaborative science, data sharing and data archiving via the World Data System (
http://www.ngdc.noaa.gov/wdc/about.shtml).
The following link is to its
Earthquake Hazards Program (
http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/us2010rja6.php#summary). If you look at the tabs in this page on
Haiti you will get access to a number of ways to see and understand these data and a bit on how to interpret these.
They also have a
citizen science program where they map the experience of earthquakes by those who feel along with the science of detecting and measuring earth quakes (
http://earthquake.usgs.gov/earthquakes/dyfi/background.php).
--
Tracey P. Lauriault
613-234-2805
https://gcrc.carleton.ca/confluence/display/GCRCWEB/Lauriault