Studies link earthquakes to oil companies injecting caustic wastewater into underground disposal wells.
Recent guidelines order US Marines not to inform Japanese authorities of accidents deemed "politically sensitive," raising concerns that many incidents may have gone unreported.
Gregg Levine is a contributor to Truthout and the former managing editor of Firedoglake. For more of his work, please visit his site, capitoilette. Follow Gregg on Twitter: @GreggJLevine.