Apparently, two historic earthquakes with epicenters on Trinidad dam were not sufficient enough warning.
A dozen apparently got some attention, but I'm intrigued by the disclaimer on the front page of this report.
Followup may be difficult in the current political climate.
Waste Injection wells, “Legacy” wells without coated steel casings, and undocumented shallow wells into the surface Mancos Shale present a multitude of challenges for high pressures of fracking operations.
Blowouts of older and even conventional oil wells are not uncommon, and represent serious environmental risks.