relation: https://episodesplatform.eu/eprints/2446/
title: Injection‐Induced Seismic Moment Release and Laboratory Fault Slip: Implications for Fluid‐Induced Seismicity
creator: Wang, Lei
creator: Kwiatek, Grzegorz
creator: Rybacki, Erik
creator: Bohnhoff, Marco
creator: Dresen, Georg
subject: Laboratory experiment
subject: Germany
description: Understanding the relation between injection-induced seismic moment release and operational parameters is crucial for early identification of possible seismic hazards associated with fluid-injection projects. We conducted laboratory fluid-injection experiments on permeable sandstone samples containing a critically stressed fault at different fluid pressurization rates. The observed fluid-induced fault deformation is dominantly aseismic. Fluid-induced stick-slip and fault creep reveal that total seismic moment release of acoustic emission (AE) events is related to total injected volume, independent of respective fault slip behavior. Seismic moment release rate of AE scales with measured fault slip velocity. For injection-induced fault slip in a homogeneous pressurized region, released moment shows a linear scaling with injected volume for stable slip (steady slip and fault creep), while we find a cubic relation for dynamic slip. Our results highlight that monitoring evolution of seismic moment release with injected volume in some cases may assist in discriminating between stable slip and unstable runaway ruptures.
date: 2020
type: Article
type: NonPeerReviewed
identifier:   Wang, Lei and Kwiatek, Grzegorz and Rybacki, Erik and Bohnhoff, Marco and Dresen, Georg  (2020) Injection‐Induced Seismic Moment Release and Laboratory Fault Slip: Implications for Fluid‐Induced Seismicity.  Geophysical Research Letters, 47 (22).  DOI: https://doi.org/10.1029/2020GL089576 <https://doi.org/10.1029/2020GL089576>     
relation: https://doi.org/10.1029/2020GL089576
relation: doi:10.1029/2020GL089576