Dr Luke Wedmore

Summary

Biography

I received my PhD from University College London (2017) where I studied fault interaction and continental extension in the central Italian Apennines. This focussed on comparing short-term historical records of earthquake with longer-term geological rates of deformation and exploring potential mechanisms for transient strain release, particularly focussing on the effect of co-seismic Coulomb stress changes. During my PhD, I also worked closely alongside colleagues at Birkbeck College, University of Leeds, Durham University and University of Bergen to use 36Cl cosmogenic exposure dating on active bedrock fault scarps in central Italy. My role in this project involved using ground penetrating radar (GPR) and terrestrial laser scanning (LiDAR) to characterise the geomorphology of the fault scarp surrounding our sample sites.

Following this, I spent a year at the University of Leeds studying co-seismic and post-seismic deformation during the 2016 central Italy earthquake sequence using hi-resolution terrestrial laser scanning collected before and after the M6.6 Norcia earthquake to explore questions relating to the shallow slip deficit and transient on-fault post-seismic deformation.

I joined Bristol Earth Sciences in February 2018 where I am working on the PREPARE project funded by the EPSRC Global Challenges Research Fund. The project is focussed on enhancing preparedness for East African to seismic hazard through increasing engineering reslience. My role is focussed on understanding the strain accumulation and fault activity in the southern end of the East African Rift. I will use a combination of techniques including InSAR, GPS and analysis of hi-resolution topography.

Keywords

• Active Tectonics
• Fault Growth and Interaction
• Tectonic Geomorphology
• High-resolution Topography
• LiDAR

Memberships

Organisations

School of Earth Sciences

Earth Sciences staff

• Earth Sciences postdoctoral researchers

Research groups

• Geophysics

Research themes

• Earth Surface Processes

Links

• Twitter Page

Recent publications

• Walters, RJ, Gregory, LC, Wedmore, LN, Craig, TJ, McCaffrey, K, Wilkinson, M, Chen, J, Li, Z, Elliot, JR, Goodall, H, Iezzi, F, Livio, F, Michetti, AM, Roberts, G & Vittori, E, 2018, ‘Dual control of fault intersections on stop-start rupture in the 2016 Central Italy seismic sequence’. Earth and Planetary Science Letters, vol 500., pp. 1-14
• Geurts, AH, Cowie, PA, Duclaux, G, Gawthorpe, RL, Huismans, RS, Pedersen, VK & Wedmore, LN, 2018, ‘Drainage integration and sediment dispersal in active continental rifts: A numerical modelling study of the central Italian Apennines’. Basin Research, vol 30., pp. 965-989
• Civico, R, Pucci, S, Villani, F, Pizzimenti, L, De Martini, PM, Nappi, R & Wedmore, L, 2018, ‘Surface ruptures following the 30 October 2016 M_w 6.5 Norcia earthquake, central Italy’. Journal of Maps, vol 14., pp. 151-160
• Cowie, PA, Phillips, RJ, Roberts, GP, McCaffrey, K, Zijerveld, LJ, Gregory, LC, Walker, JF, Wedmore, LN, Dunai, TJ, Binnie, SA, Freeman, SP, Wilcken, K, Shanks, RP, Huismans, RS, Papanikolaou, I, Michetti, AM & Wilkinson, M, 2017, ‘Orogen-scale uplift in the central Italian Apennines drives episodic behaviour of earthquake faults’. Scientific Reports, vol 7.
• Wilkinson, MW, McCaffrey, KJ, Jones, RR, Roberts, GP, Holdsworth, RE, Gregory, LC, Walters, RJ, Wedmore, L, Goodall, H & Iezzi, F, 2017, ‘Near-field fault slip of the 2016 Vettore M_w 6.6 earthquake (Central Italy) measured using low-cost GNSS’. Scientific Reports, vol 7.
• Wedmore, LN, Walker, JPF, Roberts, GP, Sammonds, PR, McCaffrey, KJ & Cowie, PA, 2017, ‘A 667 year record of coseismic and interseismic Coulomb stress changes in central Italy reveals the role of fault interaction in controlling irregular earthquake recurrence intervals’. Journal of Geophysical Research: Solid Earth, vol 122., pp. 5691-5711
• Livio, F, Michetti, AM, Vittori, E, Gregory, L, Wedmore, L, Piccardi, L, Tondi, E, Roberts, G, Blumetti, AM, Bonadeo, L, Brunamonte, F, Comerci, V, Di Manna, P, Ferrario, MF, Walker, JF, Frigerio, C, Fumanti, F, Guerrieri, L, Iezzi, F, Leoni, G, McCaffrey, K, Mildon, Z, Phillips, R, Rhodes, E, Walters, RJ, Wilkinson, M & , 2016, ‘Surface faulting during the August 24, 2016, central Italy earthquake (Mw 6.0): Preliminary results’. Annals of Geophysics, vol 59.
• Mildon, ZK, Roberts, GP, Walker, JPF, Wedmore, LN & McCaffrey, KJ, 2016, ‘Active normal faulting during the 1997 seismic sequence in Colfiorito, Umbria: Did slip propagate to the surface?’. Journal of Structural Geology, vol 91., pp. 102-113
• Wilkinson, M, Roberts, GP, McCaffrey, K, Cowie, PA, Walker, JPF, Papanikolaou, I, Phillips, RJ, Michetti, AM, Vittori, E, Gregory, L, Wedmore, L & Watson, ZK, 2015, ‘Slip distributions on active normal faults measured from LiDAR and field mapping of geomorphic offsets: An example from L'Aquila, Italy, and implications for modelling seismic moment release’. Geomorphology, vol 237., pp. 130-141

View complete publications list in the University of Bristol publications system