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Professor Sandy Steacy

Telephone +61 8 8313 4270
Position Head of School
Email sandy.steacy@adelaide.edu.au
Fax +61 8 8313 4380
Building Physics Building
Floor/Room G 31
Campus North Terrace
Org Unit School of Physical Sciences

To link to this page, please use the following URL:
http://www.adelaide.edu.au/directory/sandy.steacy

Biography/ Background

Current positions

 

Head of School, Physical Sciences, University of Adelaide                                 Jan. 2015 –

Visiting Scientist, GNS Science, New Zealand                                                        May 2013 –

 

Previous posts

 

Professor of Earthquake Physics, University of Ulster                                       Oct. 2007 – Dec. 2014

Director, Environmental Sciences Research Institute, Ulster                           Jan. 2009 – Dec. 2014

Reader in Geophysics, University of Ulster                                                            Oct. 2005 – Sept. 2007

Lecturer in Geophysics, University of Ulster                                                         Dec. 2002 – Sept. 2005

Research Lecturer in Geophysics, University of Ulster                                      Feb. 1999 – Nov. 2002

Research Officer, University of Ulster                                                                      June 1994 – Jan. 1999

Research Associate, University of Southern California                                      Feb. 1992 – May 1994

Visiting Lecturer, Calif. State Univ. – Dominguez Hills                                        Oct. 1992 – May 1993

Geophysicist, California Office of Emergency Services                                       Aug. 1992 – Dec. 1992

Research Assistant, University of Southern California                                       Jan. 1988 – Jan. 1992

Visiting Lecturer, Pomona College                                                                            Jan. 1990 – May 1990

Summer Geophysicist, Arco Oil and Gas                                                                 June 1988 – Aug. 1988

Teaching Assistant, University of Southern California                                       Sept. 1985 – Dec. 1987

Qualifications

1992: Ph.D. Geophysics, University of Southern California

          Thesis title: The Mechanics of Failure and Fragmentation in Fault Zones

          Supervisor: Professor Charles G. Sammis 

1985: B.S. Geology, University of North Carolina at Chapel Hill

Awards & Achievements

Selected invited Lectures

 

Eighth International Workshop on Statistical Seismology, A hybrid statistical/physical model for forecasting aftershock rates, Beijing, 2013.

Seismological Society of America annual meeting, A hybrid STEP/Coulomb model for aftershock rates, Salt Lake City, April, 2013

ESF Conference, Continuing Challenges in Earthquake Dynamics: Observing and Modelling a Multi-scale System, Developing a hybrid Coulomb/statistical model for the estimation of aftershock probabilities, Obergurgl, Austria, 2011.

Seventh International Workshop on Statistical Seismology, Developing a hybrid Coulomb/statistical model for the estimation of aftershock probabilities, Fira, Greece, 2011.

GFZ German Research Centre for Geosciences, Coulomb stress and aftershock probabilities - initial investigations of a combined physical/statistical approach, Potsdam, Germany, 2011.

American Geophysical Union fall meeting, Coulomb stress and aftershock probabilities, San Francisco, USA, 2009.

European Geosciences Union annual conference, Modelling earthquake interaction and seismicity statistics, Vienna, Austria, 2009.

ESF Conference, New Frontiers in Earthquake Dynamics: Observing and Modelling a Multi-scale System, Testing a rate-state model of earthquake probabilities, Obergurgl, Austria, 2008.

Bristol Centre for Applied Non-linear Mathematics, Forecasting the unpredictable: modelling the next likely earthquake and tsunami in Sumatra, Bristol, England, 2008.

Fifth International Workshop on Statistical Seismology, International School of Geophysics – Physical and Stochastic Modelling of Earthquake Occurrence and Forecasting, Simulating Seismicity in a Fault Network Model: The Effect of Interaction on Event Statistics, Erice, Italy, 2007.

Disaster Prevention Research Institute, Simulating the Next Likely Earthquake and Tsunami off the Coast of Sumatra, Kyoto, Japan, 2007.

First European Conference on Earthquake Engineering and Seismology, Earthquake Interaction and Time-Dependent Seismic Hazard: A Sumatran Case Study, Geneva, Switzerland, 2006.

International Geological Congress, Special Symposium on Geological Hazards: International approaches and perspectives, Real Time Assessment of Spatial Aftershock Distributions, Florence, Italy, 2004.

International School of Geophysics – Earthquake Mechanics, Earth Structure, and Related Problems: Stress Interaction, Fault Heterogeneity, and Earthquake Slip, Erice, Italy, 2002.

European Science Foundation – Euresco Conference on Natural and Anthropogenically Induced Hazards: Relaxation and Stress Triggering, Maratea, Italy, 2000.

International School of Geophysics – Fault Interaction by Stress Transfer; New Horizons for Understanding Earthquake Occurrence: The Sensitivity of Static Stress Calculations to Earthquake Slip, Erice, Italy, 2000.

California Institute of Technology – Seismological Laboratory Seminar: Static Stress Triggering of Aftershocks: A Real-Time Seismic Hazard Tool?, Pasadena, CA, 2000.

European Science Foundation – Euresco Conference on Natural and Anthropogenically Induced Hazards: Heterogeneity and the Earthquake Magnitude-Frequency Distribution, Maratea, Italy, 1998.

 

Awards

 

·       Leverhulme Trust Research Fellowship, 2008.

·       British Association for the Advancement of Science: Charles Lyell Award Lecturer in Environmental Science, 2000.

·       Arco Oil and Gas: USC Best Graduate Student Paper, 1992.

Research Interests

My current research is in the general area of operational earthquake forecasting, in essence the determination of time dependent changes to earthquake probabilities. My work focuses on the computation of Coulomb stress changes which affect earthquake likelihood in time and space, and in combining this physics based approach with geological and statistical models. I was a member of the expert elicitation panel on future seismic hazard in the Canterbury region whose work informed the revised building codes in Christchurch, New Zealand. I was also lead editor of a special issue of the Journal of Geophysical Research on ‘stress transfer, earthquake triggering, and time-dependent seismic hazard’, and am lead author of the review paper that introduces the volume.

Research Funding

Natural Environment Research Council, PURE Associates Scheme, J. McCloskey, M. Hope, S. Steacy, and P. Dunlop, £29,361, Dec. 2013 – May 2014.

European Commission Framework VII: Strategies and Tools for Real Time Earthquake Risk Reduction (REAKT), S. Steacy, €143,557 to Ulster, Sept. 2011 – August 2014.

European Science Foundation / Austrian Science Fund (FWF): Research conference - Continuing Challenges In Earthquake Dynamics – New Methods For Observing and Modelling A Multi-Scale System, S. Steacy, D. Marsan, S. Hainzl, and A. Christophersen, €40,000, conference held Sept. 2011.

Natural Environment Research Council: Testing a hybrid Coulomb/statistical model of aftershock occurrence, S. Steacy, £36,879, Feb. 2010 – Jan. 2012.

Leverhulme Trust: Research Fellowship – Rate-state friction and earthquake probabilities, S. Steacy, £31,331, Sept. 2008 – August 2010.

Natural Environment Research Council: Evaluation of historical earthquake interaction and seismic risk to western Sumatra, J. McCloskey, S. Steacy, and S. S. Nalbant, £47,119, July 2008 – Dec. 2009.

European Science Foundation / Austrian Science Fund (FWF): Research conference – New challenges in earthquake dynamics: Observing and modeling a multi-scale system, D. Marsan, S. Steacy, S. Hainzl, and A. Helmstetter, €60,000, conference held Oct. 2008.

Natural Environment Research Council: Urgent assessment of the earthquake and tsunami hazard in western Sumatra following the 09/07 Mentawai Islands earthquake sequence, J. McCloskey, S. Steacy, and S. S. Nalbant, £28,907, Nov. 2007 – Aug. 2008.

Natural Environment Research Council: Stress interaction, rate-state friction, and earthquake triggering, S. Steacy, £33,526, April 2007 – Dec. 2009.

Griffiths Geoscience Research Awards: Capability building for the enhanced geophysical interpretation of the dynamics of CO2 sequestration, J. McCloskey, S. Nalbant, S. Steacy, and R. Cassidy, £348,743, Sept. 2007 – June 2013

Engineering and Physical Sciences Research Council: Assessing tsunami hazard in Sumatra: A Royal Society Summer Science exhibit, S. Steacy and J. McCloskey, £7,465, July – Oct. 2006.

Natural Environment Research Council: Tsunami Risk in the Indian Ocean from threatened M>8 event under Mentawai Islands, J. McCloskey, S. Steacy, and S. S. Nalbant, £11,798, Oct. 2005 – Dec. 2006.

Natural Environment Research Council: The influence of viscoelastic relaxation on the effective duration of Coulomb stress perturbations, S. S. Nalbant, J. McCloskey, and S. Steacy, £26,924, Aug. 2005 – July, 2007.

Natural Environment Research Council: Urgent assessment of the location and orientation of the Bingöl rupture by mapping surface breaks, J. McCloskey, S. Steacy, and S.S. Nalbant, £5,000, June – Oct. 2003.

European Commission Framework VI Marie Curie: Constrained heterogeneous loading of complex fault networks (CONSTRAIN), S. Steacy and J. McCloskey, £105,690, Feb. 2005 – Jan. 2007.

Engineering and Physical Sciences Research Council: An investigation of the origin and nature of the Gutenberg-Richter relation, S. Steacy, J. McCloskey, and P. Morrow, £61,959, March 2002 – Feb. 2004.

European Commission Framework V: Towards practical, real-time estimation of spatial aftershock probabilities: a feasibility study in earthquake hazard (PRESAP), J. McCloskey and S. Steacy, €480,600 (£110,880 to Ulster), June 2000 – Sept. 2003.

Natural Environment Research Council: An investigation of the relation between Coulomb stress perturbations, large aftershocks, and fault structure, S. Steacy and J. McCloskey, £9,261, Dec. 1999 – Dec. 2001.

Publications

Steacy, S., Gerstenberger, M., Williams, C., Rhoades, D., and A. Christophersen, A new hybrid Coulomb/statistical model for earthquake forecasting, Geophysical Journal International, doi: 10.1093/gji/ggt404, 2014.

Steacy, S., Jimenez, A., and C. Holden, Stress interaction and the Canterbury earthquake sequence, Geophysical Journal International, doi: 10.1093/gji/ggt380, 2014.

Nalbant, S., McCloskey, J., Steacy, S., NicBhloscaidh, M., and S. Murphy, Interseismic coupling, stress evolution, and earthquake slip on the Sunda Megathrust, Geophysical Research Letters, 40(16), 4204-4208, doi: 10.1002/grl.50776, 2013.

Hainzl, S., Steacy, S., and D. Marsan, Seismicity models based on Coulomb stress calculations, doi:10.5078/corssa-32035809. Available at http://www.corssa.org, 2010.

McCloskey, J., Antonioli A , Piatanesi, A., Sieh , K., Steacy, S., Nalbant, S., Cocco, M, Guinchi, C., Huang, J., and Dunlop, P., Tsunami risk in the Indian Ocean from threatened megathrust earthquake west of Sumatra, Earth and Planetary Science Letters, 265, 61-81, 2008.

Hetherington, A., and S. Steacy, Fault heterogeneity and earthquake scaling, Geophysical Research Letters, 34, L16310, doi:10.1029/2007GL030365, 2007.

McCloskey, J., Antonioli A , Piatanesi, A., Sieh , K., Steacy, S., Nalbant, S., Cocco, M, Guinchi, C., Huang, J., and Dunlop, P., Near-field Propagation of Tsunamis from Megathrust Earthquakes, Geophysical Research Letters, 34, L14316, doi:10.1029/2007GL030494, 2007.

Nalbant, S.S., Steacy, S., and J. McCloskey, Stress transfer relations among the earthquakes that occurred in Kerman Province, Southern Iran, since 1981, Geophysical Journal International, 167, 309-318, 2006.

Nalbant, S.S., Steacy, S., Sieh, K., Natawidjaja, D.,  and J. McCloskey, Updated earthquake hazard in Sumatra, Nature, 435, 756-757, 2005.

McCloskey, J., S.S. Nalbant, and S. Steacy, Earthquake risk from co-seismic stress, Nature, 434, 291, 2005.

Steacy, S., J. Gomberg, and M. Cocco, Stress transfer, earthquake triggering, and time-dependent seismic hazard, Journal of Geophysical Research, 110, B05S01, doi:10.1029/2005JB003692, 2005.

Steacy, S., S.S. Nalbant, J. McCloskey, C. Nostro, O. Scotti, and D. Baumont, Onto what planes should Coulomb stress perturbations be resolved?, Journal of Geophysical Research, 110, B05S15, doi:10.1029/2004JB003356, 2005.

Nalbant, S.S., J. McCloskey, and S. Steacy, Lessons on the calculation of static stress loading from the 2003 Bingol, Turkey earthquake, Earth and Planetary Science Letters, 235 (3-4), 632-640, 2005.

Steacy, S., J. McCloskey, D. Marsan, and S.S. Nalbant, The dependence of static stress calculations on the details of the earthquake slip distribution, Journal of Geophysical Research, 109, B04303, doi:10.1029/2002JB002365, 2004.

McCloskey, J., S.S. Nalbant, S. Steacy, O. Scotti, C. Nostro, and D. Baumont, Structural constraints on the spatial distribution of aftershocks, Geophysical Research Letters, 30 (12), 1610-1614, 2003.

Utkucu, M., S. Nalbant, J. McCloskey, S. Steacy, and O. Alptchin, Slip Distribution and stress changes associated with the November 12, 1999, Düzce (Turkey) Earthquake (Mw=7.1), Geophysical Journal International, 153,  229–241, 2003.

Nalbant, S.S., J. McCloskey, S. Steacy, and A.A. Barka, Stress accumulation and increased seismic risk in Eastern Turkey, Earth and Planetary Science Letters, 195, 291-298, 2002.

Marsan, D., C. Bean, S. Steacy, and J. McCloskey, Observation of diffusion processes in earthquake populations and implications for the predictability of seismicity systems, Journal of Geophysical Research, 105, 28081-28094, 2000.

Steacy, S., and J. McCloskey, Heterogeneity and the earthquake magnitude-frequency distribution, Geophysical Research Letters, 26, 7, 899-902, 1999.

Marsan, D., C. Bean, S. Steacy, and J. McCloskey, Spatio-temporal analysis of stress diffusion in a mining-induced seismicity system, Geophysical Research Letters, 26, 24, 3697-3700, 1999.

Steacy, S., and J. McCloskey, What controls an earthquake’s size? Results from a heterogeneous cellular automaton, Geophysical Journal International, 133, F11-F14, 1998.

Steacy, S., J. McCloskey, C. Bean, and J. Ren, Simulating seismicity in Creighton Mine: A 3-D self-organized critical model, in Gibowicz, S.J., and S. Lasocki, eds., Rockbursts and Seismicity in Mines, A.A. Balkema, Rotterdam, p. 201-206, 1997.

Steacy, S., J. McCloskey, C. Bean, and J. Ren, Heterogeneity in a self-organized critical earthquake model, Geophysical Research Letters, 23, 4, 383-386, 1996.

Sammis, C., and S. Steacy, Fractal fragmentation in crustal shear zones, in Barton, C.C. and P.R. LaPointe eds., Fractals in the Earth Sciences, Plenum Press, p. 179-203, 1995.

Sammis, C., and S. Steacy, The micromechanics of friction in a granular layer, Pure and Applied Geophysics, 142, p. 777-794, 1994.

Steacy, S., and C. Sammis, A damage mechanics model for fault-zone friction, Journal of Geophysical Research, 97, p. 587-594, 1992.

Steacy, S., and C. Sammis, An automaton for fractal patterns of fragmentation, Nature, 353, p. 250-252, 1991.

Professional Associations

Research Committees and Panels

 

·       Framework 7 Expert Evaluator: Tsunamis and Coastal Hazards, Nov. 2012

·       Expert Elicitation Panel on Canterbury Seismic Hazard, Nov. 2011

·       Campaign for Science and Engineering: Board of Directors, 2011 – present.

·       Natural Environment Research Council Peer Review College, 2007 – 2011.

·       American Geophysical Union Publications Committee, 2008 – 2010.

·       Science Foundation Ireland: Geosciences panel member, 2007 – 2008.

 

Editorial Experience

 

·       Community Resource for Statistical Seismology Analysis (CORSSA), Outreach Editor, 2010 – 2013.

·       Journal of Geophysical Research – Solid Earth, Associate Editor, 2005 – 2009.

·       Journal of Geophysical Research, guest editor of special issue on Stress Transfer, Triggered Earthquakes, and Time-dependent Seismic Hazard, May 2005.

 

Conferences Convened

 

·       Convener of ESF-FWF funded conference on Continuing Challenges in Earthquake Dynamics: New Methods for Observing and Modelling a Multi-Scale System, Obergurgl, Austria, Sept. 2011.

·       Co-convener of ESF-FWF funded conference on New Challenges in Earthquake Dynamics: Observing and Modelling a Multi-Scale System, Obergurgl, Austria, Oct. 2008.

 

Conference Sessions Convened

 

·       Lead convener of late-breaking special session on The 2007 Sumatra Seismic Sequence at the American Geophysical Union annual meeting, San Francisco, Dec. 2007.

·       Co-convener of special session on Time-Dependent Earthquake Hazard Assessment at the First European Conference on Earthquake Engineering and Seismology, Geneva, Switzerland, Sept. 2006.

·       Lead convener of special session on Stress Transfer, Triggered Earthquakes, and Time-dependent Seismic Hazard at American Geophysical Union annual meeting, San Francisco, Dec. 2003.

 

External Evaluator

 

·       University College Dublin, Professorial promotions panel, 2014.

·       University of East Anglia, External examiner of undergrad geoscience course, 2011 – 2014.

·       University of Potsdam, Ph.D., 2013.

·       University of East Anglia, Ph.D., 2011.

·       University of Potsdam, Habilitation assessment, 2010.

·       University of California – Riverside, appointment of internally funded researcher, 2009.

·       Geo-Forschungs-Zentrum – Potsdam, tenure case, 2009.

·       University College London, Ph.D., 2009.

·       University of Edinburgh, Ph.D., 2007.

Expertise for Media Contact

CategoriesScience & Technology
Expertiseearthquakes, tsunamis, natural hazards, seismic hazard, volcanoes

Entry last updated: Sunday, 24 Jan 2016

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