Skip to Main content Skip to Navigation
Journal articles

Repeating seismicity in the shallow crust modulated by transient stress perturbations

Abstract : Recent studies have reported seismic phenomena that are modulated by small stress perturbations (∼10 kPa), revealing their critically stressed nature. Such observations have been principally limited to plate interfaces with their occurrence linked to high fluid pore-pressure. In this study, we report observations of nine repeating seismic sources in the shallow crust in Guerrero, Mexico that emit events at rates comparable to other seismic phenomena in low stress environments. Testing their susceptibility to small stress perturbations, we find that all nine sources appear to be modulated by mining activity, tides, and a large slow slip event (Mw 7.5). Our results suggest that the fault conditions necessary for low effective stress seismicity can occur away from plate interfaces.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03581292
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Saturday, February 19, 2022 - 12:52:26 PM
Last modification on : Monday, February 21, 2022 - 3:29:46 AM

Links full text

Identifiers

Citation

William B. Frank, Nikolaï M. Shapiro, Allen L. Husker, Vladimir Kostoglodov, Michel Campillo. Repeating seismicity in the shallow crust modulated by transient stress perturbations. Tectonophysics, 2016, 687, pp.105-110. ⟨10.1016/j.tecto.2016.09.003⟩. ⟨insu-03581292⟩

Share

Metrics

Record views

43