The Arrival of Man-Made Earthquakes

An anonymous reader writes: The New Yorker has a long investigative report on a recent geological phenomenon: man-made earthquakes. The article describes how scientists painstakingly gathered data on the quakes, and then tried to find ways to communicate the results — which are quite definitive — to politicians who often have financial reasons to disbelieve them. Quoting: "Until 2008, Oklahoma experienced an average of one to two earthquakes of 3.0 magnitude or greater each year. (Magnitude-3.0 earthquakes tend to be felt, while smaller earthquakes may be noticed only by scientific equipment or by people close to the epicenter.) In 2009, there were twenty. The next year, there were forty-two. In 2014, there were five hundred and eighty-five, nearly triple the rate of California.

In state government, oil money is both invisible and pervasive. In 2013, Mary Fallin, the governor, combined the positions of Secretary of Energy and Secretary of the Environment. Michael Teague, whom she appointed to the position, when asked by the local NPR reporter Joe Wertz whether he believed in climate change, responded that he believed that the climate changed every day. Of the earthquakes, Teague has said that we need to learn more. Fallin's first substantive response came in 2014, when she encouraged Oklahomans to buy earthquake insurance. (However, many earthquake-insurance policies in the state exclude coverage for induced earthquakes.)"

Comments

Obviously A Devine Warning

[hax4bux]

Repent sinners! God is angry at Oklahoma.

Re:Keep digging you own hole

[Rei]

I look at it like being on a mountain and whacking at rocks with a big mallet. Little ones, you'll almost certainly send rolling down the slope. Ones that are several dozen kilograms, it'll be hit or miss whether you'll make enough of an impact to send them down the mountainside. But giant multi-tonne boulders? You're irrelevant to them, even if they're already precariously balanced.

On the other hand, there's always the possibility that you might hit a smaller rock, sending it cascading into a bigger rock, etc, and ultimately trigger a chain reaction that was already sitting there on a knife's edge. But the odds of this, just hitting rocks at random (let alone deliberately trying to avoid precariously balanced rocks), is very low.

The amount of energy people are putting into the ground compared to the scale of the forces involved in major faults is pretty much irrelevant. Even if the fault is "ready to go", you're still hardly affecting it. There's always the chance you might start a cascade of slips... but that's unlikely, even if you weren't deliberately trying to avoid working near major faults - and drillers do try to avoid working near major faults.

Possible - but very unlikely.