The link between hydrofracking, wastewater injection and earthquakes: key issues for re/insurers
The scale of increased earthquake activity in Oklahoma over recent years is unparalleled. Since 2008 the number of magnitude 3.0 earthquakes per year has grown from roughly 2 per year to an average of nearly 3 per day. This now makes Oklahoma the most seismically active of the lower forty-eight states. It’s highly likely that this dramatic rise in earthquake occurrence is largely a consequence of human actions.
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