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Title:
High-rate injection is associated with the increase in U.S. mid-continent seismicity
Authors:
Weingarten, M.; Ge, S.; Godt, J. W.; Bekins, B. A.; Rubinstein, J. L.
Affiliation:
AA(Department of Geological Sciences, University of Colorado, Boulder, CO, USA), AB(Department of Geological Sciences, University of Colorado, Boulder, CO, USA), AC(United States Geological Survey, Denver, CO, USA), AD(United States Geological Survey, Menlo Park, CA, USA), AE(United States Geological Survey, Menlo Park, CA, USA)
Publication:
Science, Volume 348, Issue 6241, pp. 1336-1340 (2015). (Sci Homepage)
Publication Date:
06/2015
Category:
GEOCHEM PHYS
Origin:
SCIENCE
Abstract Copyright:
(c) 2015: Science
DOI:
10.1126/science.aab1345
Bibliographic Code:
2015Sci...348.1336W

Abstract

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.
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