Shear-wave anisotropy reveals pore fluid pressure–induced seismicity in the U.S. midcontinent
dc.contributor.author | Nolte, Keith Alexander | |
dc.contributor.author | Tsoflias, Georgios P. | |
dc.contributor.author | Bidgoli, Tandis S. | |
dc.contributor.author | Watney, W. Lynn | |
dc.date.accessioned | 2018-11-16T17:04:08Z | |
dc.date.available | 2018-11-16T17:04:08Z | |
dc.date.issued | 2017-12-13 | |
dc.identifier.citation | Nolte, K. A., Tsoflias, G. P., Bidgoli, T. S., & Watney, W. L. (2017). Shear-wave anisotropy reveals pore fluid pressure–induced seismicity in the US midcontinent. Science advances, 3(12), e1700443. | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/27379 | |
dc.description.abstract | Seismicity in the U.S. midcontinent has increased by orders of magnitude over the past decade. Spatiotemporal correlations of seismicity to wastewater injection operations have suggested that injection-related pore fluid pressure increases are inducing the earthquakes. We present direct evidence linking earthquake occurrence to pore pressure increase in the U.S. midcontinent through time-lapse shear-wave (S-wave) anisotropy analysis. Since the onset of the observation period in 2010, the orientation of the fast S-wave polarization has flipped from inline with the maximum horizontal stress to inline with the minimum horizontal stress, a change known to be associated with critical pore pressure buildup. The time delay between fast and slow S-wave arrivals exhibits increased variance through time, which is common in critical pore fluid settings. Near-basement borehole fluid pressure measurements indicate pore pressure increase in the region over the earthquake monitoring period. | en_US |
dc.publisher | American Association for the Advancement of Science | |
dc.rights | Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | en_US |
dc.title | Shear-wave anisotropy reveals pore fluid pressure–induced seismicity in the U.S. midcontinent | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1126/sciadv.1700443 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.rights.accessrights | openAccess | en_US |
Files in this item
This item appears in the following Collection(s)
-
Geology Scholarly Works [247]
Except where otherwise noted, this item's license is described as: Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.