Junior Research Group Leader: Experimental Geomechanics
My research group is funded bya European Research CouncilStarting Grant, projectPREDATORS(Plate-rate experimental deformation: Aseismic, transient or seismic fault slip).
We use laboratory deformation experiments to understand the nature of fault slip, specifically why stable aseismic creep, destructive large magnitude earthquakes, or intermediate slow slip events occur. We combine our mechanical data with other techniques, such as microstructural and compositional observations, for a more complete picture. We make heavy use of International Ocean Discovery Program (IODP) and International Continental scientific Drilling Program (ICDP) samples from natural faults; examples include the Nankai Trough and Tohoku (Japan), Costa Rica, Cascadia, and Hikurangi subduction zones, as well as the San Andreas Fault (California) and Alpine Fault (New Zealand).
For more information on our working group and the PREDATORS project:Experimental Geomechanics
Research Interests:Fault mechanics, earthquake generation, frictional properties of rock and sediment, subduction zone processes, fault-fluid interactions, slow earthquakes, submarine landslides
Expeditions:IODP Expedition 343, Japan Trench (2012), RV Sonne Expedition SO222, Nankai Trough (2012), IODP Expedition 322, Nankai Trough (2009)
Selected Recent Publications:
Ikari, M.J., A.J. Kopf (2017), Seismic potential of weak, near-surface faults revealed at plate tectonic slip rates, Science Advances 3, e1701269, doi :10.1126/sciadv1701269.
Ikari, M.J., Y. Ito, K. Ujiie and A.J. Kopf (2015), Spectrum of slip behavior in Tohoku fault zone samples at plate tectonic slip rates, Nature Geoscience 8, doi :10.1038/NGEO2547.
Ikari, M.J. (2015), Principal slip zones : Precursors, but not recorders of earthquake slip, Geology 43, 955-958, doi :10.1130/G37028.1.