Areas of expertise

• Seismology And Seismic Exploration 040407
• Geophysics 0404
• Geophysics Not Elsewhere Classified 040499

Research interests

Biography

Current student projects

Publications

• Pham, T & Tkalcic, H 2021, 'Constraining Floating Ice Shelf Structures by Spectral Response of Teleseismic P-Wave Coda: Ross Ice Shelf, Antarctica', Journal of Geophysical Research: Solid Earth, vol. 126, no. 4.
• Li, Y, Miller, M, Tkalčić, H, Sambridge, M 2021, 'Small-scale heterogeneity in the lowermost mantle beneath Alaska and northern Pacific revealed from shear-wave triplications', Earth and Planetary Science Letters, vol. 559, no. 11678, pp. 1-11.
• Donner, S, Mustać, M, Hejrani, B, Tkalčić, H, et al. 2020, 'Seismic moment tensors from rotational and translational ground motion: Green's functions in 1D vs. 3D', Geophysical Journal International, vol. 223, no. 1, pp. 161-179.
• Hejrani, B & Tkalčić, H 2020, 'Resolvability of the Centroid-Moment-Tensors for Shallow Seismic Sources and Improvements From Modeling High-Frequency Waveforms', Journal of Geophysical Research: Solid Earth, vol. 125, no. 7, pp. 1-31.
• Muir, J & Tkalčić, H 2020, 'Probabilistic lowermost mantle P-wave tomography from hierarchical Hamiltonian Monte Carlo and model parametrization cross-validation', Geophysical Journal International, vol. 223, no. 3, pp. 1630-1643.
• Mustać, M, Hejrani, B, Tkalčić, H, et al 2020, 'Large Isotropic Component in the Source Mechanism of the 2013 Democratic People's Republic of Korea Nuclear Test Revealed via a Hierarchical Bayesian Inversion, Bulletin of the Seismological Society of America, https://doi.org/10.1785/0120190062.
• Shang, X & Tkalčić, H 2020, 'Point‐Source Inversion of Small and Moderate Earthquakes From P‐wave Polarities and P/S Amplitude Ratios Within a Hierarchical Bayesian Framework: Implications for the Geysers Earthquakes', Journal of Geophysical Research: Solid Earth, vol. 125, no. 2, pp. 1-26.
• Stephenson, J, Tkalčić, H & Sambridge, M 2020, 'Evidence for the innermost inner core: Robust parameter search for radially varying anisotropy using the Neighbourhood Algorithm', Journal of Geophysical Research: Solid Earth, vol. 126, pp. 1-17.
• Stipčević, J, Herak, M, Molinari, I, Dasović, I, Tkalčić, H and Gosar, A. 2020, 'Crustal Thickness Beneath the Dinarides and Surrounding Areas From Receiver Functions', Tectonics, vol. 39, no. 3, pp. 1-15.
• Tkalčić, H & Pham, T 2020, 'Excitation of the global correlation wavefield by large earthquakes', Geophysical Journal International, vol. 223, no. 3, pp. 1769-1779.
• Tkalčić, H, Pham, T & Wang, S 2020, 'The Earth's coda correlation wavefield: Rise of the new paradigm and recent advances', Earth-Science Reviews, vol. 208, pp. 1-30.
• Wang, C, Tauzin, B, Pham, T, Tkalčić, H 2020, 'On The Efficiency of P‐Wave Coda Autocorrelation in Recovering Crustal Structure: Examples From Dense Arrays in the Eastern United States', Journal of Geophysical Research: Solid Earth, vol. 125, pp. 1-19.
• Wang, S & Tkalčić, H 2020, 'Seismic Event Coda‐Correlation: Toward Global Coda‐Correlation Tomography', Journal of Geophysical Research: Solid Earth, vol. 125, no. 4.
• Wang, S & Tkalčić, H 2020, 'Seismic event coda-correlation's formation: implications for global seismology', Geophysical Journal International, vol. 222, no. 2, pp. 1283–1294.
• White, L, Rawlinson, N, Lister, G et al 2019, 'Earth's deepest earthquake swarms track fluid ascent beneath nascent arc volcanoes', Earth and Planetary Science Letters, vol. 521, pp. 25-36.
• Fontaine, F, Roult, G, Hejrani, B et al 2019, 'Very- and ultra-long-period seismic signals prior to and during caldera formation on La Reunion Island', Scientific Reports, vol. 9, pp. 1-15.
• Makushkina, A, Tauzin, B, Tkalčić, H et al 2019, 'The Mantle Transition Zone in Fennoscandia: Enigmatic High Topography Without Deep Mantle Thermal Anomaly', Geophysical Research Letters, vol. 46, no. 7, pp. 3652-3662.
• Pejić, T, Hawkins, R, Sambridge, M and Tkalčić, H 2019, 'Transdimensional Bayesian Attenuation Tomography of the Upper Inner Core, Journal of Geophysical Research: Solid Earth, 124, https://doi.org/10.1029/2018JB0164002019.
• Tauzin, B, Pham, T-S & Tkalčić, H 2019, 'Receiver functions from seismic interferometry: a practical guide', Geophysical Journal International, vol. 217, no. 1, pp. 1-24.
• Thompson, D, Rawlinson, N & Tkalčić,, H 2019, 'Testing the limits of virtual deep seismic sounding via new crustal thickness estimates of the Australian continent', Geophysical Journal International, vol. 218, no. 2, pp. 797-800.
• Hejrani, B & Tkalčić, H 2019, 'The centroid location, magnitude and the mechanism of 20 May 2016 Petermann Ranges earthquake, Australian Journal of Earth Sciences, 66:1, 37-45, https:doi.org/10.1080/08120099.2018.1525783.
• Pham, T-S & Tkalčić, H 2018, 'Antarctic Ice Properties Revealed From Teleseismic P Wave Coda Autocorrelation', Journal of Geophysical Research: Solid Earth, https://doi.org/10.1029/2018JB016115, vol. 123, no. 9, pp. 7896-7912.
• Pham, T-S, Tkalčić, H, Sambridge, M et al 2018, 'Earth's Correlation Wavefield: Late Coda Correlation', Geophysical Research Letters, vol. 45, no. 7, pp. 3035-3042.
• Mattesini, M, Belonoshko, A & Tkalčić, H 2018, 'Polymorphic Nature of Iron and Degree of Lattice Preferred Orientation Beneath the Earth's Inner Core Boundary', Geochemistry, Geophysics, Geosystems, vol. 19, no. 1, pp. 292-304.
• Lister, G, Tkalčić, H, Hejrani, B et al 2018, 'Lineaments and earthquake ruptures on the East Japan megathrust', Lithosphere, vol. 10, no. 4, pp. 512-522pp.
• Mustać, M, Tkalčić, H & Burky, A 2018, 'The Variability and Interpretation of Earthquake Source Mechanisms in The Geysers Geothermal Field From a Bayesian Standpoint Based on the Choice of a Noise Model', Journal of Geophysical Research: Solid Earth, vol. 123, no. 1, pp. 513-532pp.
• Hejrani, B, Tkalčić, H & Fichtner, A 2017, 'Centroid moment tensor catalogue using a 3-D continental scale Earth model: Application to earthquakes in Papua New Guinea and the Solomon Islands', Journal of Geophysical Research: Solid Earth, vol. 122, no. 7, pp. 5517-5543.
• Kim, S, Tkalčić, H & Rhie, J 2017, 'Seismic constraints on magma evolution beneath Mount Baekdu (Changbai) volcano from transdimensional Bayesian inversion of ambient noise data', Journal of Geophysical Research: Solid Earth, vol. 122, no. 7, pp. 5452-5473pp.
• Mustać, M & Tkalčić, H 2017, 'On the Use of Data Noise as a Site-Specific Weight Parameter in a Hierarchical Bayesian Moment Tensor Inversion: The Case Study of The Geysers and Long Valley Caldera Earthquakes', Bulletin of the Seismological Society of America, vol. 107.
• Pejić, T, Tkalčić, H, Sambridge, M, Benavente, R 2017, 'Attenuation tomography of the upper inner core', Journal of Geophysical Research: Solid Earth, pp. 1-25pp.
• Pham, T-S & Tkalčić, H 2017, 'On the feasibility and use of teleseismic P wave coda autocorrelation for mapping shallow seismic discontinuities', Journal of Geophysical Research: Solid Earth, vol. 122, pp. 3776-3791pp.
• Sippl, C, Brisbout, L, Spaggiari, C, Gessner, K. Tkalčić, H., Kennett, B.L.N. and Murdie, R., 2017, 'Crustal structure of a Proterozoic craton boundary: East Albany-Fraser Orogen, Western Australia, imaged with passive seismic and gravity anomaly data', Precambrian Research, vol. 296, pp. 78-92.
• Sippl, C, Kennett, B, Tkalčić, H et al 2017, 'Crustal surface-wave velocity structure of the east Albany-Fraser Orogen, Western Australia, from ambient noise recordings', Geophysical Journal International, vol. 210, 1641-1651, 2017.
• Stipčević, J, Kennett, B & Tkalčić, H 2017, 'Simultaneous use of multiple seismic arrays', Geophysical Journal International, vol. 209, pp. 770-783.
• Tkalčić, H 2017, The Earth's Inner Core, Cambridge University Press, Cambridge, https:/doi.org.10.1017/9781139583954.
• Kim, S, Dettmer, J, Rhie, J, Tkalčić, H 2016, 'Highly efficient Bayesian joint inversion for receiver based data and its application to lithospheric structure beneath the southern Korean Peninsula', Geophysical Journal International, vol. 206, no. 1, pp. 328-344.
• Kim, S, Tkalčić, H, Rhie, J et al 2016, 'Intraplate volcanism controlled by back-arc and continental structures in northeast Asia inferred from trans-dimensional Bayesian ambient noise tomography', Geophysical Research Letters, vol. 43, pp. 8390-8398.
• Mustać, M & Tkalčić, H 2016, 'Point source moment tensor inversion through a Bayesian hierarchical model', Geophysical Journal International, vol. 204, no. 1, pp. 311-323.
• Pachhai, S, Tkalčić, H & Masters, G 2016, 'Estimation of splitting functions from Earth's normal modes using neighbourhood algorithm', Geophysical Journal International, vol. 204, no. 1, pp. 111-126.
• Gal, M, Reading, A, Ellingsen, S et al 2015, 'The frequency dependence and locations of short-period microseisms generated in the Southern Ocean and West Pacific', Journal of Geophysical Research: Solid Earth, vol. 120, no. 8, pp. 5764-5781.
• Fontaine, F, Barruol, G, Tkalčić, H et al 2015, 'Crustal and uppermost mantle structure variation beneath La Reunion hotspot track', Geophysical Journal International, vol. 203, no. 1, pp. 107-126.
• Muir, JB and Tkalčić, H 2015, 'A method of spherical harmonic analysis in the geosciences via Bayesian hierarchical inference.', Geophysical Journal International, vol. 203, pp. 1164-1171.
• Pachhai, S, Dettmer, J & Tkalčić, H 2015, 'Ultra-low velocity zones beneath the Philippine and Tasman Seas revealed by a trans-dimensional Bayesian waveform inversion', Geophysical Journal International, vol. 203, no. 2, pp. 1302-1318.
• Sippl, C, Kennett, B, Tkalčić, H et al 2016, 'New constraints on the current stress field and seismic velocity structure of the eastern Yilgarn Craton from mechanisms of local earthquakes', Australian Journal of Earth Sciences, vol. 62, no. 8, pp. 921-931.
• Tanaka, S & Tkalčić, H 2015, 'Complex inner core boundary from frequency characteristics of the reflection coefficients of PKiKP waves observed by Hi-net', Progress in Earth and Planetary Science, vol. 2, p. 34.
• Tkalčić, H 2015, 'Complex inner core of the Earth: The last frontier of global seismology', Reviews of Geophysics, vol. 53, no. 1, pp. 59-94.
• Tkalčić, H, Young, M, Muir, J et al 2015, 'Strong, Multi-Scale Heterogeneity in Earth's Lowermost Mantle', Scientific Reports, vol. 5, p. 18416.
• Lister, G, Tkalčić, H, McClusky, S et al 2014, 'Skewed orientation groups in scatter plots of earthquake fault plane solutions: Implications for extensional geometry at oceanic spreading centers', Journal of Geophysical Research: Solid Earth, vol. 119, no. 3, pp. 2055-2067.
• Pachhai, S, Tkalčić, H & Dettmer, J 2014, 'Bayesian inference for ultralow velocity zones in the Earth's lowermost mantle: Complex ULVZ beneath the east of the Philippines', Journal of Geophysical Research: Solid Earth, vol. 119, no. 11, pp. 8346-8365.
• Reading, A, Koper, K, Gal, M et al 2014, 'Dominant seismic noise sources in the Southern Ocean and West Pacific, 2000-2012, recorded at the Warramunga Seismic Array, Australia', Geophysical Research Letters, vol. 41, no. 10, pp. 3455-3463.
• Yee, T, Rhie, J & Tkalčić, H 2014, 'Regionally heterogeneous uppermost inner core observed with Hi-net array', Journal of Geophysical Research: Solid Earth, vol. 119, no. 10, pp. 7823-7845.
• Kiseeva, E, Yaxley, G, Stepanov, A et al 2013, 'Metapyroxenite in the mantle transition zone revealed from majorite inclusions in diamonds', Geology, vol. 41, no. 8, pp. 883-886.
• Fontaine, F, Tkalčić, H & Kennett, B 2013, 'Crustal complexity in the Lachlan Orogen revealed from teleseismic receiver functions', Australian Journal of Earth Sciences, vol. 60, no. 3, pp. 413-430.
• Fontaine, F, Tkalčić, H & Kennett, B 2013, 'Imaging crustal structure variation across southeastern Australia', Tectonophysics, vol. 582, pp. 112-125.
• Mattesini, M, Belonoshko, A, Tkalčić, H et al 2013, 'Candy wrapper for the Earth's inner core', Scientific Reports, vol. 3, pp. online.
• Sambridge, M, Tkalčić, H, Bodin, T et al 2013, 'Transdimensional inference in the geosciences', Philosophical Transactions of the Royal Society Series A, vol. 371, no. 1984, pp. -.
• Tkalčić, H, Bodin, T, Young, M et al 2013, 'On the nature of the P-wave velocity gradient in the inner core beneath Central America', Australian Journal of Earth Sciences, vol. 24, no. 5, pp. 699-705.
• Tkalčić, H, Young, M, Bodin, T et al 2013, 'The shuffling rotation of the Earth's inner core revealed by earthquake doublets', Nature Geoscience, vol. 6, no. 6, pp. 497-502.
• Young, M, Tkalčić, H, Bodin, T et al 2013, 'Global P wave tomography of Earth's lowermost mantle from partition modeling', Journal of Geophysical Research, vol. 118, no. 10, pp. 5467-5486.
• Bodin, T, Sambridge, M, Tkalčić, H et al 2012, 'Transdimensional inversion of receiver functions and surface wave dispersion', Journal of Geophysical Research:Solid Earth, vol. 117, pp. B02301.
• Reading, AM, Tkalčić, H, Kennett, BLN, Johnson S.P., & Sheppard S., 2012, 'Seismic structure of the crust and uppermost mantle of the Capricorn and Paterson Orogens and adjacent cratons, Western Australia, from passive seismic transects', Precambrian Research, vol. 196-197, pp. 295-308.
• Tkalčić, H, Rawlinson, N, Arroucau, P et al 2012, 'Multistep modelling of receiver-based seismic and ambient noise data from WOMBAT array: Crustal structure beneath southeast Australia**', Geophysical Journal International, vol. 189, no. 3, pp. 1680-1700.
• Young, M, Tkalčić, H, Rawlinson, N et al 2012, 'Exploiting seismic signal and noise in an intracratonic environment to constrain crustal structure and source parameters of infrequent earthquakes', Geophysical Journal International, vol. 188, no. 3, pp. 1303-1321.
• Kennett, B, Salmon, M, Saygin, E et al 2011, 'AusMoho: the variation of Moho depth in Australia', Geophysical Journal International, vol. 187, no. 2, pp. 946-958.
• Sambridge, M, Tkalčić, H & Arroucau, P 2011, 'Benford's Law of First Digits: From mathematical Curiosity to Change Detector', Asia Pacific Mathematics Newsletter (APMN), vol. 1, no. 4, pp. 1-6.
• Stipčević, J, Tkalčić, H., Herak, M., Markušić, S and Herak, D, 2011, 'Crustal and uppermost mantle structure beneath the External Dinarides, Croatia, determined from teleseismic receiver functions', Geophysical Journal International, vol. 185, no. 3, pp. 1103-1119.
• Tkalčić, H, Chen, Y, Liu, R, Huang, Z, Sun, L and Chan, W, 2011, 'Multistep modelling of teleseismic receiver functions combined with constraints from seismic tomography: Crustal structure beneath southeast China', Geophysical Journal International, 187, pp. 303-326., doi: 10.1111/j.1365-246X.2011.05132.x.
• Young, M, Rawlinson, N, Arroucau, P, Reading, A and Tkalčić, H. 2011, 'High-frequency ambient noise tomography of southeast Australia: New constraints on Tasmania's tectonic past', Geophysical Research Letters, vol. 38, pp. L13313-L13318.
• Hingee, M, Tkalčić, H, Fichtner, A et al 2011, 'Seismic moment tensor inversion using a 3-D structural model: applications for the Australian region**', Geophysical Journal International, vol. 184(2), pp. 949-964.
• Tkalčić, H 2010, 'Large variations in travel times of mantle-sensitive seismic waves from the South Sandwich Islands: Is the Earth's inner core a conglomerate of anisotropic domains?', Geophysical Research Letters, vol. 37, no. L14312, pp. 1-6.
• Sambridge, M, Tkalčić, H & Jackson, A 2010, 'Benford's law in the natural sciences', Geophysical Research Letters, vol. 37, no. L22301, pp. 5 pages.
• Fichtner, A & Tkalčić, H 2010, 'Insights into the kinematics of a volcanic caldera drop: Probabilistic finite-source inversion of the 1996 Bardarbunga, Iceland, earthquake', Earth and Planetary Science Letters, no. 297, pp. 607-615.
• Rawlinson, N, Tkalčić, H & Reading, A 2010, 'Structure of the Tasmanian lithosphere from 3D seismic tomography', Australian Journal of Earth Sciences (formerly, Geological Society of Australia Special Publication), vol. 57, no. 4, pp. 381-394.
• Leykam, D, Tkalčić, H & Reading, A 2010, 'Core structure re-examined using new teleseismic data recorded in Antarctica: evidence for, at most, weak cylindrical seismic anisotropy in the inner core', Geophysical Journal International, vol. 180, no. 3, pp. 1329-1343.
• Chen, Y, Niu, F, Liu, R, Huang, Z, Tkalčić, H, Sun, L, Chan, W 2010, 'Crustal structure beneath China from receiver function analysis', Journal of Geophysical Research, vol. 115, pp. B03307.
• Tkalčić, H, Cormier, V, Kennett, B et al 2010, 'Steep reflections from the earth's core reveal small-scale heterogeneity in the upper mantle', Physics of the Earth and Planetary Interiors, vol. 178, no. 1-2, pp. 80-91.
• Tkalčić, H, Kennett, B & Cormier, V 2009, 'On the inner-outer core density contrast from PKiKP/PcP amplitude ratios and uncertainties caused by seismic noise', Geophysical Journal International, vol. 179, pp. 425-443.
• Tkalčić, H, Dreger, D, Foulger, G et al 2009, 'The puzzle of the 1996 Bardarbunga, Iceland, Earthquake: No volumetric component in the source mechanism', Bulletin of the Seismological Society of America, vol. 99, no. 5, pp. 3007-3085.
• Kennett, B & Tkalčić, H 2008, 'Dynamic Earth: crustal and mantle heterogeneity', Australian Journal of Earth Sciences, vol. 55, pp. 265-279.
• Tkalčić, H & Kennett, B 2008, 'Core structure and heterogeneity: a seismological perspective', Australian Journal of Earth Sciences, vol. 55, pp. 419-431.
• Tkalčić, H, Rodgers, A, Rawlinson, N et al 2008, 'Teleseismic Travel-Time Delays in the Las Vegas Basin', Bulletin of the Seismological Society of America, vol. 98, no. 4, pp. 2047-2060.
• Pasyanos, M, Tkalčić, H, GöK, R et al 2007, 'Seismic structure of Kuwait', Geophysical Journal International, vol. 170, pp. 299-312.
• Tkalčić, H, Flanagan, M & Cormier, V 2006, 'Obesrvation of near-podal P'P' precursors: Evidence for back scattering from the 150-220 km zone in the Earth's upper mantle', Geophysical Research Letters, vol. 33, pp. L03005 1 to 4.
• Garcia, R, Tkalčić, H & Chevrot, S 2006, 'A new global PKP data set to study Earth's core and deep mantle', Physics of the Earth and Planetary Interiors, vol. 159, pp. 15-31.
• Tkalčić, H, Pasyanos, M, Rodgers, A et al 2006, 'A multistep approach for joint modeling of surface wave dispersion and teleseismic receiver functions: implications for lithospheric structure of the Arabian Peninsula', Journal of Geophysical Research, vol. 111, pp. B11311, 1 of 25.
• Rodgers, A, Tkalčić, H, Mccallen, D et al 2006, 'Site Response in Las Vegas Valley, Nevada from NTS Explosions and Earthquake Data', Pure and Applied Geophysics, vol. 163, pp. 55-80.
• Romanowicz, B, Tkalčić, H & Breger, L 2003, 'On the origin of complexity in PKP travel time data', in V. Dehant, K. Creager, S-I. Karato, S. Zatman (ed.), Earth's Core: dynamics, structure, rotation, American Geophysical Union, United States, pp. 31-44.
• Tkalčić, H & Romanowicz, B 2002, 'Short scale heterogeneity in the lowermost mantle: insights from PcP-P and ScS-S data', Earth and Planetary Science Letters, vol. 201, pp. 57-68.
• Tkalčić, H, Romanowicz, B & Houy, N 2002, 'Constraints on D" structute using PKP(AB-DF), PKP(BC-DF) and PcP-P traveltime data from broad-band records', Geophysical Journal International, vol. 148, pp. 599-616.
• Panning, M, Dreger, D & Tkalčić, H 2001, 'Near-source velocity structure and isoteropic moment tensors: a case study of the Long Valley Caldera', Geophysical Research Letters, vol. 28, pp. 1815-1818.
• Breger, L, Tkalčić, H & Romanowicz, B 2000, 'The effect of D" on PKP(AB-DF) travel time residuals and possible implications for inner core structure', Earth and Planetary Science Letters, vol. 175, pp. 133-143.
• Dreger, D, Tkalčić, H & Johnston, M 2000, 'Dilational Processes Accompanying Earthquakes in the Long Valley Caldera', Science, vol. 288, pp. 122-125.
• Breger, L, Romanowicz, B & Tkalčić, H 1999, 'PKP(BC-DF) travel time residuals and short scale heterogeneity in the deep earth', Geophysical Research Letters, vol. 26, pp. 3169-3172.

Projects and Grants

Grants information is drawn from ARIES. To add or update Projects or Grants information please contact your College Research Office.

• Probing the Australian-Pacific plate boundary: Macquarie Ridge in 3-D (Primary Investigator)
• Towards Improved Understanding of Seismic Moment Tensors: Utilizing High-Resolution Earth Model with Accompanying Uncertainty Within Hierarchical Bayesian Inversion Framework (Primary Investigator)
• Dynamic topography around The North Atlantic - Acquisition and interpretation of seismological data (Primary Investigator)
• Rapid Determination of Earthquake Sources in Australia (Primary Investigator)
• Craton modification and growth: the east Albany-Fraser Orogen in 3-D (Primary Investigator)
• Multi-Array, Multi-Frequency Probing of the Earth's Heterogeneity (Primary Investigator)
• Seismic tomography using signal and noise: A new window into deep Earth (Secondary Investigator)