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Freed

Andrew Freed
Associate Professor
freed@purdue.edu

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Dept of Earth & Atmospheric Sciences
Purdue University
550 Stadium Mall Drive
West Lafayette, IN 47907
ph. (765) 496-3738
Fax (765) 496-1210

• Rheological Studies
  Setting up a GPS receiver in a tent city in Haiti following the 2010 earthquake to monitor postseismic deformation.
• Earthquake Triggering
  Finite element model calculated stress changes following the 1992 Landers earthquake, which may explain the triggering of the subsequent Hector Mine quake.
• Planetary Science
  Finite element model calculation of the cooling of asteroid 433 Eros due to orbital transfer.

The Geodynamics Modeling Group @ Purdue

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Our group develops numerical models to quantify fundamental processes in four areas of geodynamics: rheology, earthquake triggering, plate tectonics, and planetary science. Our primary tool is the development of viscoelastic finite element models that enable us use geodetic and seismological observations of faulting and surface deformation to test hypotheses associated with the development of fault systems and rheologic structure and to calculate the evolution of crustal stresses through time in various tectonic settings. Often our target is associated with identifying earthquake hazards by determining which faults in a region have accumulated the most unrelieved stress or are currently experiences the highest loading rates. Click on one of the four research areas from the pull-down menu above (or on the rotating figure above) to learn more about our research.