Increased stream discharge after the 3 September 2016 Mw 5.8 Pawnee, Oklahoma earthquake

Michael Manga, Chi Yuen Wang, Manoochehr Shirzaei

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Earthquakes influence hydrogeological processes and properties in Earth's crust, some of which affect surface waters. We document increased discharge in a stream after the 3 September 2016 Mw 5.8 earthquake near Pawnee, Oklahoma, an event likely induced by underground wastewater disposal. Discharge increased by an order of magnitude and remained elevated until the change was obscured by rain 1 week later. Given the earthquake magnitude and distance from the stream, by comparison with previous examples of responses to earthquakes, increased discharge after this earthquake is expected. While the mechanism increasing discharge cannot be confirmed, the observations require changes in physical properties of the subsurface. Fluid injection may thus influence hydrogeological properties of shallow groundwater systems and aquifers indirectly by inducing seismicity, if the induced seismic events are large enough.

Original languageEnglish (US)
Pages (from-to)11,588-11,594
JournalGeophysical Research Letters
Volume43
Issue number22
DOIs
StatePublished - Nov 28 2016

Keywords

  • induced earthquake
  • permeability change
  • stream discharge

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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