Seafloor sheds light on deadly Haiti quake

[NewsWhore]

After an earthquake, heavier sand set loose in landslides settles first, while water is still sloshing around, forming recognizable patterns; thicker layers of mud settle on top in calmer waters ...

More... (http://story.haitisun.com/index.php/ct/9/cid/8d0a8b42a4163d9f/id/202631598/)