Staff profiles
Charles WilliamsGeodynamic Modeller
Biography
Charles is a Geodynamic Modeller in the Earth Structure and Processes Department. His research interests include the development and usage of finite element codes for modelling problems in short-term crustal dynamics, including modelling of deformation and stress related to fault slip and magma movement. He also does inverse problems related to fault slip as well as generating synthetic earthquake catalogs using earthquake simulators.
Qualifications
- PhD, Geophysics
- MSc, Geophysics
- BA, Physics/Geology
Areas of expertise
- Geophysics: Crustal deformation and neotectonics
- Geophysics: Mathematical inversion techniques
- Geophysics: Technical Computer Applications
- Geophysics: Modelling
- Geophysics: Subduction zones
- Geophysics: Geodynamics
- Geophysics: Earthquake hazard modelling
- Geophysics: Finite element analysis
- Geophysics: Stress triggering
- Geophysics: Numerical Methods
- Geophysics: Volcano Geophysics
- Geophysics: Code development
Major Publications
See all publications
- Magmatic priming of a phreatic eruption sequence : the 2012 Te Maari eruptions at Mt Tongariro (New Zealand) imaged by magnetotellurics and seismicity, Geophysical Journal International 236(3): p. 1848-1862. DOI: 10.1093/gji/ggae022. p. 1848-1862
- Inverting geodetic strain rates for slip deficit rate in complex deforming zones: an application to the New Zealand plate boundary, Journal of Geophysical Research. Solid Earth 129(3): 21 p.. DOI: 10.1029/2023JB027565. 21 p.
- Imaging the spatiotemporal evolution of plate coupling with interferometric radar (InSAR) in the Hikurangi subduction zone, Geophysical Research Letters 50(19): 12 p.. DOI: 10.1029/2023GL105388. 12 p.
- Deep short-term slow slip and tremor in the Manawatu Region, NewZealand, Geophysical Research Letters 50(21): 11 p.. DOI: 10.1029/2023GL105428. 11 p.
- Multiphysics modelling in PyLith : poroelasticity, Geophysical Journal International 235(3): p. 2442-2475. DOI: 10.1093/gji/ggad370. p. 2442-2475
- Ultralow frictional healing explains recurring slow slip events, Science 379(6633): p. 712-717. DOI: 10.1126/science.adf4930. p. 712-717
- State of stress and stress rotations : quantifying the role of surface topography and subsurface density contrasts in magmatic rift zones (Eastern Rift, Africa), Earth and Planetary Science Letters 584: article 117478. DOI: 10.1016/j.epsl.2022.117478. article 117478
- Physics-based earthquake simulations in slow-moving faults : a case study from the Eastern Betic Shear Zone (SE Iberian Peninsula), Journal of Geophysical Research. Solid Earth 126(5): e2020JB021133. DOI: 10.1029/2020JB021133. e2020JB021133
- The impact of realistic elastic properties on inversions of shallow subduction interface slow slip events using seafloor geodetic data, Geophysical Research Letters 45(15): p. 7462-7470. DOI: 10.1029/2018GL078042. p. 7462-7470
- PyLith v2.2.1 [software] DOI: 10.5281/zenodo.886600. Davis, CA: University of California, Davis, Computation Infrastructure for Geodynamics.
- Fluid budgets along the northern Hikurangi subduction margin, New Zealand : the effect of a subducting seamount on fluid pressure, Geophysical Journal International 202(1): p. 277-297. DOI: 10.1093/gji/ggv127. p. 277-297
- Effects of material property variations on slip estimates for subduction interface slow-slip events, Geophysical Research Letters 42(4): p. 1113-1121. DOI: 10.1002/2014GL062505. p. 1113-1121
- Modeling shear wave splitting due to stress-induced anisotropy, with an application to Mount Asama Volcano, Japan, Journal of Geophysical Research. Solid Earth 119(5): p. 4269-4286. DOI: 10.1002/2013JB010817. p. 4269-4286
- Numerical modeling of deformation and stress fields around a magma chamber : constraints on failure conditions and rheology, Physics of the Earth and Planetary Interiors 226: p. 14-27. DOI: 10.1016/j.pepi.2013.11.003. p. 14-27
- A new hybrid Coulomb/statistical model for forecasting aftershock rates, Geophysical Journal International 196(2): p. 918-923. DOI: 10.1093/gji/ggt404. p. 918-923
- A domain decomposition approach to implementing fault slip in finite-element models of quasi-static and dynamic crustal deformation, Journal of Geophysical Research. Solid Earth 118(6): p. 30593079. DOI: 10.1002/jgrb.50217. p. 30593079
- Revised interface geometry for the Hikurangi subduction zone, New Zealand, Seismological Research Letters 84(6): p. 1066-1073. DOI: 10.1785/0220130035. p. 1066-1073
- Three-dimensional FEM derived elastic Green's functions for the coseismic deformation of the 2005 Mw 8.7 Nias-Simeulue, Sumatra earthquake, Geochemistry Geophysics Geosystems 12(7): Q07013. DOI: 10.1029/2011GC003553. Q07013
- Static stress changes induced by the magmatic intrusions during the 2002-2003 Etna eruption, Journal of Geophysical Research. Solid Earth 113(10): B10206. DOI: 10.1029/2007JB005301. B10206
- Temporal and spatial variations of post-seismic deformation following the 1999 Chi-Chi, Taiwan earthquake, Geophysical Journal International 169(2): p. 367-379. p. 367-379
- Stress rates in the central Cascadia subduction zone inferred from an elastic plate model, Geophysical Research Letters 28(10): p. 2125-2128. p. 2125-2128
- An accurate and efficient method for including the effects of topography in three-dimensional elastic models of ground deformation with applications to radar interferometry, Journal of Geophysical Research. Solid Earth 105(B4): p. 8103-8120. p. 8103-8120
- Effect of the brittle-ductile transition on the topography of compressive mountain belts on Earth and Venus, Journal of Geophysical Research. Solid Earth 99(B10): p. 19947-19974. p. 19947-19974
- A rheologically layered three-dimensional model of the San Andreas Fault in central and southern California, Journal of Geophysical Research. Solid Earth 96(B10): p. 16597-16623. p. 16597-16623
- Mechanics of graben formation in crustal rocks : a finite element analysis, Journal of Geophysical Research. Solid Earth 94(B10): p. 13961-13973. p. 13961-13973