James Biemiller, PhD
James Biemiller is a Mendenhall Postdoctoral Research Geophysicist with the GMEG Science Center in Portland, OR. He received a B.S. in Physics and Geology from Washington & Lee University and a Ph.D. in Geological Sciences from the University of Texas. His current research focuses on the geodynamics and seismic hazards of the Cascadia subduction zone.
Professional Experience
Ph.D., Geological Sciences, The University of Texas at Austin, 2020
B.S., Physics & Geology, Washington and Lee University, 2015
Science and Products
Structural controls on splay fault rupture dynamics during Cascadia megathrust earthquakes Structural controls on splay fault rupture dynamics during Cascadia megathrust earthquakes
Great subduction earthquakes (Mw ≥ 8.0) can generate devastating tsunamis by rapidly displacing the seafloor and overlying water column. These potentially tsunamigenic seafloor offsets result from coseismic fault slip and deformation beneath or within the accretionary wedge. The mechanics of these shallow rupture phenomena and their dependence on subduction zone properties remain...
Authors
James Burkhardt Biemiller, Alice-Agnes Gabriel, Lydia M. Staisch, Thomas Ulrich, Audrey Dunham, Erin A. Wirth, Janet Watt, Madeleine C. Lucas, Anna Ledeczi
3D Dynamic rupture modeling of the 6 February 2023, Kahramanmaraş, Turkey Mw 7.8 and 7.7 earthquake doublet using early observations 3D Dynamic rupture modeling of the 6 February 2023, Kahramanmaraş, Turkey Mw 7.8 and 7.7 earthquake doublet using early observations
The 2023 Turkey earthquake sequence involved unexpected ruptures across numerous fault segments. We present 3D dynamic rupture simulations to illuminate the complex dynamics of the earthquake doublet. Our models are constrained by observations available within days of the sequence and deliver timely, mechanically consistent explanations of the unforeseen rupture paths, diverse rupture...
Authors
Alice-Agnes Gabriel, Thomas Ulrich, Mathilde Marchandon, James Burkhardt Biemiller, John Rekoske
Subduction zone geometry modulates the megathrust earthquake cycle: Magnitude, recurrence, and variability Subduction zone geometry modulates the megathrust earthquake cycle: Magnitude, recurrence, and variability
Megathrust geometric properties exhibit some of the strongest correlations with maximum earthquake magnitude in global surveys of large subduction zone earthquakes, but the mechanisms through which fault geometry influences subduction earthquake cycle dynamics remain unresolved. Here, we develop 39 models of sequences of earthquakes and aseismic slip (SEAS) on variably-dipping planar and...
Authors
James Burkhardt Biemiller, Alice-Agnes Gabriel, Dave May, Lydia M. Staisch
Science and Products
Structural controls on splay fault rupture dynamics during Cascadia megathrust earthquakes Structural controls on splay fault rupture dynamics during Cascadia megathrust earthquakes
Great subduction earthquakes (Mw ≥ 8.0) can generate devastating tsunamis by rapidly displacing the seafloor and overlying water column. These potentially tsunamigenic seafloor offsets result from coseismic fault slip and deformation beneath or within the accretionary wedge. The mechanics of these shallow rupture phenomena and their dependence on subduction zone properties remain...
Authors
James Burkhardt Biemiller, Alice-Agnes Gabriel, Lydia M. Staisch, Thomas Ulrich, Audrey Dunham, Erin A. Wirth, Janet Watt, Madeleine C. Lucas, Anna Ledeczi
3D Dynamic rupture modeling of the 6 February 2023, Kahramanmaraş, Turkey Mw 7.8 and 7.7 earthquake doublet using early observations 3D Dynamic rupture modeling of the 6 February 2023, Kahramanmaraş, Turkey Mw 7.8 and 7.7 earthquake doublet using early observations
The 2023 Turkey earthquake sequence involved unexpected ruptures across numerous fault segments. We present 3D dynamic rupture simulations to illuminate the complex dynamics of the earthquake doublet. Our models are constrained by observations available within days of the sequence and deliver timely, mechanically consistent explanations of the unforeseen rupture paths, diverse rupture...
Authors
Alice-Agnes Gabriel, Thomas Ulrich, Mathilde Marchandon, James Burkhardt Biemiller, John Rekoske
Subduction zone geometry modulates the megathrust earthquake cycle: Magnitude, recurrence, and variability Subduction zone geometry modulates the megathrust earthquake cycle: Magnitude, recurrence, and variability
Megathrust geometric properties exhibit some of the strongest correlations with maximum earthquake magnitude in global surveys of large subduction zone earthquakes, but the mechanisms through which fault geometry influences subduction earthquake cycle dynamics remain unresolved. Here, we develop 39 models of sequences of earthquakes and aseismic slip (SEAS) on variably-dipping planar and...
Authors
James Burkhardt Biemiller, Alice-Agnes Gabriel, Dave May, Lydia M. Staisch