Seismology & Mathematical Geophysics

The Seismology and Mathematical Geophysics research group within the Geophysics area has broad interests ranging from elucidating lithospheric structures, to studying the inner core, to developing new methods for imaging Earth's interior.

Research in the group covers a range of activities designed to exploit the favourable location of Australia relative to the world's earthquake belts. This is reflected in extensive studies using deployments of portable instrumentation to study the structure of the Australian continent and the mantle beneath. Research in different topics of theoretical seismology and data inference are a strength of the group.

We operate the Warramunga Seismic and Infrasound Research Station (WRA) near Tennant Creek, Northern Territory. The seismic and infrasound arrays are primary stations in the International Monitoring System for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO). The arrays were upgraded to meet Treaty standards in 2000. Data are sent by satellite link to the International Data Centre in Vienna, and the National Data Centre at Geoscience Australia in Canberra. The broad-band station CAN at Mt Stromlo is operated in association with the French GEOSCOPE network and a broad-band borehole instrument (WRAB) is supported at the Warramunga Array for the IRIS-IDA network as a contribution to global seismology. The group hosts the seismological component of the National Research Facility for Earth Sounding (ANSIR), which operates portable instrumentation for approved projects. The group also has a programme of ultra-low power seismic recorder development. It also has access to extensive computational facilities through the in-house Terrawulf cluster and the National Computational Infrastructure (NCI).

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Project Status
Computational Geodynamics Potential
Craton modification and growth: The east Albany-Fraser Orogen in 3-D (Tkalčić, Kennett, Sippl, Spaggiari and Gessner) Current
Deep Earth Seismology Potential
Earth's Intra-plate Volcanic Engine (Davies, Campbell, Kennett and Duvernay) Current
Finite Fault inversion using the W-Phase (Benavente and Cummins) Current
Fluidity: the next frontier (Mathews and Davies) Current
From Plume Source To Hotspot: Quantifying Mixing In Mantle Plumes And It's Implications For The Nature Of Deep-Mantle Heterogeneity (Davies) Current
From Plume Source To Hotspot: Quantifying Mixing In Mantle Plumes And Its Implications For The Nature Of Deep-Mantle Heterogeneity Current
How can we monitor the wave before its arrivals? (Allgeyer) Current
Improved Earth Structure in Northeast Asia and Seismic Moment Tensor Inversion Using Bayesian Partition Modeling (Tkalčić, Kim, Chen, Rhie and Ford) Current
Inner core structure using free oscillations of the Earth and neighbourhood algorithm (Pachhai,Tkalčić and Masters) Current
Is the physics that we use to model deep ocean gravity wave sufficient? (Allgeyer) Current
Localization of Intraplate Deformation through Fluid-assisted Fault Reactivation in the Lower-Crust: The Flinders Ranges, South Australia (Balfour, Cummins and Pilia) Current
Multi-array, multi-frequency probing of the Earth's heterogeneity (Tkalčić, Kennett, Stipčević and Tanaka) Current
Planet's internal rotation Potential
Pulsing Mantle Plumes: Causes And Geological Consequences (Davies) Current
Quantifying The Key Controls On Regional Subduction Dynamics Potential
Quantifying The Key Controls On Regional Subduction Dynamics (Davies) Current
Rapid determination of earthquake sources in Australia (Tkalčić, Hejrani and Fichtner) Current
Realistic tsunami modeling with seafloor loading and density stratification (Allgeyer and Cummins) Current
Seismic sources (Tkalčić) Current
Seismic structure of Earth's core and lowermost mantle Potential
Seismic wave propagation (Kennett) Current
Seismographic Studies on Basin Effects in the Amplification of Seismic Waves in Indonesia (Saygin, Cummins and Cipta) Current
Seismology of the Earth's deep interior (Tkalčić et. al.) Current
Source Mechanism Determination for Improved Seismic Hazard Assessment in Indonesia (Balfour and Cummins) Current
Studying the crust and the upper mantle structure beneath Australia using multiple geophysical datasets (Sebastian, Tkalčić and Sippl) Current
Subduction dynamics: slabs in the mantle Potential
The Australian Seismometers in Schools Network (AuSIS) (Salmon, Sambridge and Byrne) Current
The dynamic planet: Connecting the surface to the deep Potential
The global consequences of subduction zone congestion (Miller, Moresi (lead), Betts, Whittaker) Current
Time-Reverse imaging of the tsunami source (Hossen, Cummins, Roberts and Allgeyer) Current
Transdimensional Bayesian finite fault inversion (Dettmer, Benavente, Hossen and Cummins) Current
Transitions in the Banda Arc - Australia continental collision (Miller) Current
Using dense seismic arrays to map deep mantle sharp features (Miller and Sun) Current
What are the key parameter of effects in harbors and bays? (Allgeyer) Current