http://www.nyx.net/~dcypser/induceq/iis.html
Over 100 scientific papers regarding injection-induced earthquakes - the most famous incidence of which was the waste injection at Rocky Mountain Arsenal in Colorado causing earthquakes in the 1960s.
Wow, a list.
Given how many injection wells there have been drilled in Texas, I'd guess we're the earthquake center of the earth!
At one time, weren't they injecting water into a fault in the ME (Iran I believe) to induce smaller earthquakes in order to prevent one large one?