Modelling fluid induced seismicity on a nearby active fault

Files in This Item:
File Description SizeFormat 
GJI_2013_Murphy.pdf1.34 MBAdobe PDFDownload
Title: Modelling fluid induced seismicity on a nearby active fault
Authors: Murphy, Shane
O'Brien, G. S.
McCloskey, J.
Bean, Christopher J.
Nalbant, S.
Permanent link:
Date: Sep-2013
Online since: 2014-02-28T09:17:16Z
Abstract: We present a numerical investigation of the effect that static stress perturbations due to fluid injection have on a nearby active fault where the fluid does not come in physical contact with the fault. Our modelling employs a lattice Boltzmann pore diffusion model coupled with a quasi-dynamic earthquake rupture model. As diffusivities and frictional parameters can be defined independently at individual nodes/cells this allows us to replicate complex 3-D geological media in our simulations. We demonstrate the effect an injection can have on an active nearby fault. Compared with our control catalogue (identical to the original simulation but without the injection), the injection not only altered the timing of the next earthquake sequence, it also changed its size, producing a Mw 6.7 event, the largest observed earthquake on the fault. This large event pushes the fault into a subcritical state from which it took roughly 200 yr of continuous tectonic loading for the fault to return to a critical state.
Type of material: Journal Article
Publisher: Oxford University Press
Journal: Geophysical Journal International
Volume: 194
Issue: 3
Start page: 1613
End page: 1624
Copyright (published version): 2013, the Authors
Keywords: Numerical approximations and analysisSelf-organizationPermeability and porosityFrictionSeismicity and tectonicsComputational seismology
DOI: 10.1093/gji/ggt174
Language: en
Status of Item: Peer reviewed
Appears in Collections:Earth Sciences Research Collection

Show full item record

Citations 20

Last Week
Last month
checked on Feb 11, 2019

Page view(s) 50

checked on May 25, 2018

Download(s) 50

checked on May 25, 2018

Google ScholarTM



This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.