Wastewater cap could dunk Oklahoma quake risk
Rising volume of underground injections had caused seismic activity to skyrocket
![Oklahoma quake map](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/11/113016_ts_earthquake_main.jpg?fit=860%2C460&ssl=1)
THE SHAKES In Oklahoma, disposal of massive amounts of wastewater into underground wells over the last few years (redder-shaded regions) caused an uptick in earthquake activity (gray dots) over historic rates (black dots), including several large quakes registering magnitude 4.5 or stronger (stars).
C. Langenbruch and M.D. Zoback/Science Advances 2016