Hrvoje Tkalčić
Fellow in Seismology
Area: Earth Physics
Group: Seismology and Mathematical Geophysics
Research School
of Earth Sciences,
The Australian
National University
Canberra, ACT 0200, AUSTRALIA
tel: +61-2-6125 3213
fax: +61-2-6257 2737
Email: Hrvoje.Tkalcic @ anu.edu.au
Publications
Curriculum Vitae
News and media 
Opportunities for students
PHYS3070 Course material
Research Interests
The Australian Outback through my lens
A look inside a volcano: Le Piton de la Fournaise, La Reunion Island
Free Software
IRFFM (Interactive Receiver Functions Forward Modeller)
v1.1
RESEARCH HIGHLIGHTS
INNER CORE AS A CONGLOMERATE OF ANISOTROPIC DOMAINS 
Click on the image above to find out more about recent research on
the inner core.
VOLCANIC EARTHQUAKES IN ICELAND WITH ANOMALOUS SEISMIC
RADIATION 
Click on the image above to find out more about recent research on
anomalous earthquakes in Iceland.
SMALL-SCALE HETEROGENEITY OR PARTIAL
MELT IN THE UPPER MANTLE POSTULATED FROM FIRST OBSERVATIONS AND MODELING
OF "PODAL" PKPPKP WAVES AND THEIR PRECURSORS
Click on the MPEG icon to watch a movie
showing PKPPKP main phase at lower frequencies, and prominent PKPPKP
precursors at higher frequencies, for an Alaskan earthquake observed at
the ILAR array. These precursors are interpreted as reflections from the
upper mantle heterogeneity between 150 and 220 km depth.
Click on
the image above to find out more about the first observations of "podal"
PKPPKP waves and their precursors.
LARGE POLARIZATION ANISOTROPY IN THE
MANTLE OBSERVED THROUGH MULTI-STEP MODELING OF RECEIVER FUNCTIONS AND SURFACE
WAVES
Click on the image above to find out more
about multi-step modeling of receiver functions and surface wave dispersion, and
the observation of large polarization anisotropy in the upper mantle.
COMPRESSIONAL VELOCITY MODEL OF THE LOWERMOST
MANTLE
Click on the
image above for more details on P wave tomography of the Earth's lowermost mantle using PKP
and PcP waves and implications for anisotropy in the inner core. You are welcome to
download TRH_KC model with plotting instructions and figures.
