TY - JOUR PY - 2015// TI - Induced seismicity. High-rate injection is associated with the increase in U.S. mid-continent seismicity JO - Science A1 - Weingarten, M. A1 - Ge, S. A1 - Godt, J. W. A1 - Bekins, B. A. A1 - Rubinstein, J. L. SP - 1336 EP - 1340 VL - 348 IS - 6241 N2 - An unprecedented increase in earthquakes in the U.S. mid-continent began in 2009. Many of these earthquakes have been documented as induced by wastewater injection. We examine the relationship between wastewater injection and U.S. mid-continent seismicity using a newly assembled injection well database for the central and eastern United States. We find that the entire increase in earthquake rate is associated with fluid injection wells. High-rate injection wells (>300,000 barrels per month) are much more likely to be associated with earthquakes than lower-rate wells. At the scale of our study, a well's cumulative injected volume, monthly wellhead pressure, depth, and proximity to crystalline basement do not strongly correlate with earthquake association. Managing injection rates may be a useful tool to minimize the likelihood of induced earthquakes.

Language: en

LA - en SN - 0036-8075 UR - http://dx.doi.org/10.1126/science.aab1345 ID - ref1 ER -