Project Summary

Passive seismic monitoring is the science of recording and analysing natural or induced seismicity with surface and/or borehole sensor arrays, without the need for active (man-made) seismic energy sources. This project looks at how it can be applied for Monitoring, Measurement and Verification (MMV, an important aspect of any CO2 geosequestration project. This research is based on data acquired with a sparse network of sensors over a period of 12 months measuring and interpreting background seismicity and noise conditions in the South Perth Basin.

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Passive seismic investigations at the SW Hub

This project deployed a sparse network of sensors over a year. The data was analysed for the seasonal variation of ambient seismic noise from natural processes. Advanced detection and location algorithms were used to search for any local and regional seismic activity. Regional earthquakes and mining explosions are clearly recorded across the network, however, local seismic activity was not detected. Seismic ambient noise tomography results show the variation of 2D seismic velocities across Perth Basin and adjacent Yilgarn Craton.

Project Name:
Passive seismic investigations at the South West Hub

Research Organisation:
The University of Western Australia

Status:
Completed, 2018

Authors:
E Saygin

Reference:
7-0215-0244

Research Program: Carbon Transport and Storage
Demonstration: Southern Perth Basin
Research Focus: Fracture, Passive Seismic, Induced Microseismicity

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