‘Fracking' and Earthquakes

NBC Bay Area’s Stephen Stock uncovers a practice here in the Bay Area involving splitting rocks underground with high-pressure chemical water. It’s all to release natural gas or oil. The technique, called “fracking,” is raising serious concerns all over the country. NBC Bay Area’s Stephen Stock found out state regulators are doing nothing about it. This story was published March 1, 2012 at 12:24 a.m.