Drilling - no, but the injection process is widely known to trigger Earthquakes, including several earthquake swarms in oilfields near cities in California and a spectacular series of quakes set of by the US defence Dept at hte Rocky Mountain Arsenal when it tried disposing chemical wastes through deep injection too close to a dormant fault line.
http://earthquake.usgs.gov/learn/faq/?categoryID=1&faqID=1
http://www.nyx.net/~dcypser/induceq/iis.html
http://www.springerlink.com/content/u315626k2071q0j0/
http://cat.inist.fr/?aModele=afficheN&cpsidt=1287847
http://citizensagainstco2sequestration.blogspot.com/2009/06/fluid-injection-triggered-earthquake.html
As you will see from the last post, and the implications about viability of geothermal power stations, this is rapidly becoming a politicised debate...
Space/Science » in reply to Two Geothermal Projects Halted
Re: Really?