Andy Freed Publications - Department of Earth, Atmospheric, and Planetary Sciences - Purdue University Skip to main content

Andy Freed, Professor of Geophysics and Planetary Sciences,

Andy Freed on a beach


(48) Elliott, J. R., Y-H Huang, D. A. Minton, A. M. Freed, The length of lunar crater rays explained using secondary crater scaling, J. Geophys. Res., in revision, 2017.

(47) Blair, D. M., L. Chappaz, R. Sood, C. Milbury, A. Bobet, H. J. Melosh, K. C. Howell, A. M. Freed, Determining the structural stability of lunar lava tubes, Icarus, 282, 47-55, 2017.

(46) Douilly, R., W. L. Ellsworth, E. Kissling, A. M. Freed, A. Deschamps, and B. M. de Lépinay, 3D Velocity Structure in Southern Haiti from Local Earthquake Tomography, J. Geophys. Res., in press, 2016.

(45) Huang, M-H, H. Dickinson, E. J. Fielding, J. Sun, A. M. Freed, R. Bürgmann, Fault Geometry and Slip Distribution of the 2010 Mw 7.2 El Mayor-Cucapah Earthquake from Geodetic Data, J. Geophys. Res., in press, 2016.

(44) Johnson, B. C., T. J. BowlingP, A. J. Trowbridge, A. M. Freed, Formation of the Sputnik Planum basin and the thickness of Pluto’s subsurface ocean, Geophys. Res. Lett., 43, 10,068–10,077, doi:10.1002/2016GL070694, 2016.

(43) HashimaP, A., T. W. Becker, A. M. Freed, H. Sato, and D. A. Okaya, Coseismic deformation due to the 2011 Tohoku-oki earthquake: influence of 3-D elastic structure around Japan, Earth Planets Space, 68, 159. doi:10.1186, 2016.

(42) Johnson, B. C., D. M. Blair, G. S. Collins, H. J. Melosh, A. M. Freed, G. J. Taylor, J. W. Head, M. A. Wieczorek, J. C. Andrews-Hanna, F. Nimmo, J. T. Keane, K. Miljković, J. M. Soderblom, M. T. Zuber, Formation of the Orientale lunar multiring basin, Science, 441-444, 2016.

(41) Trowbridge, A. J., H. J. Melosh, J. K. Steckloff, and A. M. Freed, Vigorous convection as the explanation for Pluto’s polygonal terrain, Nature 534, 79–81, doi:10.1038/nature18016, 2016.

(40) Dickinson, H., A. M. Freed, and C. Andronicos, Inference of the viscosity structure and mantle conditions beneath the Central Nevada Seismic Belt from combined postseismic and lake unloading studies, Geochem., Geophys., Geosys., DOI: 10.1002/2015GC006207, 2016.

(39) Symithe, S., E. Calais, A. M. Freed, Present-day shortening in Southern Haiti from GPS measurements and implications for seismic hazard, Tectonophysics, 679, 117-124, 2016.

(38) Wiseman, K., R. Bürgmann, A. M. Freed, Viscoelastic relaxation in a heterogeneous Earth following the 2004 Sumatra-Andaman earthquake, Earth Planet. Sci. Lett., 431, 308-317, 2015.

(37) Douilly, R., H. Aochi, E. Calais and A. M. Freed, Three-dimensional dynamic rupture simulations across interacting faults: The Mw7.0, 2010, Haiti earthquake, J. Geophys. Res., 120, doi:10.1002/014JB011595, 2015.

(36) Huang, M-H, R. Bürgmann, and A. M. Freed, Probing the lithospheric rheology across the eastern margin of the Tibetan Plateau, Earth Planet. Sci. Lett., 396, 88-96, 2014.

(35) Freed, A. M., B. C. Johnson, D. M. Blair, H. J. Melosh, G. A. Neumann, R. J. Phillips, S. C. Solomon, M. A. Wieczorek, M. T. Zuber, The Formation of Lunar Mascon Basins from Impact to Contemporary Form, J. Geophys. Res. Planets, 119, doi:10.1002/2014JE004657, 2014.

(34) Melosh, H. J., A. M. Freed, B. C. Johnson, D. M. Blair, J. C. Andrews-Hanna, G. A. Neumann, R. J. Phillips, D. E. Smith, S. C. Solomon, M. A. Wieczorek, M. T. Zuber, The Origin of Lunar Mascon Basins, Science, 340, 1552-1555, 2013.

(33) Guilhem, A., Roland Bürgmann, A. M. Freed, T. S. Ali, Testing the Accelerating Moment Release (AMR) Hypothesis in Areas of High Stress, Geophys. J. Int., 195, 785-798, 2013.

(32) Symithe, S. J., E. Calais, A. M. Freed, J. Haase, Coseismic slip distribution of the 2010 M7.0 Haiti Earthquake and resulting stress changes on regional faults, Bull. Seis. Soc. Am., 103, 2326-2343, 2013.

(31) Blair, D. M., A. M. Freed, P. K. Byrne P, C. Klimczak P, L. M. Prockter, C. M. Ernst, S. C. Solomon, H. J. Melosh, M. T. Zuber, The origin of graben and ridges in Rachmaninoff, Raditladi, and Mozart basins, Mercury, J. Geophys. Res., 118, 1–12, doi:10.1029/2012JE004198, 2013.

(30) Freed, A. M., D. M. Blair, T. R. Watters, C. Klimczak P, P. K. Byrne P, S. C. Solomon, M. T. Zuber, and H. J. Melosh, On the Origin of Graben and Ridges at Buried Basins in Mercury’s Northern Plains, J. Geophys. Res., 117, doi:10.1029/2012JE004119, 2012.

(29) KlimczakP, C., T. R. Watters, C. M. Ernst, A. M. Freed, P. K. ByrneP, S. C. Solomon, D. M. Blair, and J. W. Head, Deformation associated with ghost craters in smooth volcanic plains units on Mercury: Stain analysis and implications for smooth plains evolution, J. Geophys. Res., 117, doi:10.1029/2012JE004100, 2012.

(28) Watters, T. R., S. C. Solomon, C. KlimczakP, A. M. Freed, J. W. Head, C. M. Ernst, M. S. Robinson, D. M. Blair, T. A. Goudge, and P. K. Byrne P (2012). Extension and Contraction within Volcanically Buried Impact Craters and Basins on Mercury, Geology, doi 10.1130/G33725.1, 2012.

(27) Zuber, M. T., Smith, D. E., Phillips, R. J., Solomon, S. C., Neumann, G. A., Hauck, S. A. II, Peale, S. J., Barnouin, O. S., Head, J. W., Johnson, C. L., Lemoine, F. G., Mazarico, E., Sun, X., Torrence, M. H., Freed, A. M., Klimczak, C., Margot, J.-L., Oberst, J., Perry, M. E., McNutt, R. L., Balcerski, J. A., Michel, N., Talpe, M. J. Yang, D. Topography of the Northern Hemisphere of Mercury from MESSENGER Laser Altimetry, Science, 10.1126/science.1218805, 2012.

(26) Freed, A. M., G. Hirth, and M. D. Behn, Using short-term postseismic displacements to infer the ambient deformation conditions of the upper mantle, J. Geophys. Res., doi:10.1029/2011JB008562, 2011.

(25) Calais, E., A. M. Freed, G. Mattioli, F. Amelung, S. Jónsson, P. Jansma, S.-H. Hong, T. Dixon, C. Prépetit, and R. Momplaisir, Transpressional rupture of an unmapped fault during the 2010 Haiti earthquake, Nature Geoscience, 3, 794-799, 2010.

(24) Freed, A. M., T. Herring, and R. Bürgmann, Steady-State Laboratory Flow Laws Alone Fail To Explain Postseismic Observations, Earth Planet. Sci. Lett., 300, 1-10, 2010.

(23) Ali, S. T. and A. M. Freed, Contemporary deformation and stressing rates in Southern Alaska, Geophys. J. Inter., 183, 557-571, 2010.

(22) Calais, E., A.M. Freed, R. Van Arsdale, and S. Stein, Triggering of New Madrid Seismicity by Late Pleistocene Erosion, Nature, 466, 608-611, 2010.

(21) Freed, A. M., S. C. Solomon, T, R. Watters, R. J. Phillips, M. T. Zuber, Could Pantheon Fossae be the result of the Apollodorus crater-forming impact within the Caloris Basin, Mercury? Earth Planet. Sci. Lett., doi:10.1016/j.epsl.2009.02.038, 2009.

(20) Ganguly, J., A. M. Freed, and S. K. Saxena, Density profiles of oceanic slabs and surrounding mantle: Integrated thermodynamic and thermal modeling, and implications for the fate of slabs at the 660 km discontinuity, Phys. Earth Planet. Int., 172, 257-267, 2009.

(19) Kalbas, J. L., A. M. Freed, and K. D. Ridgway, Contemporary fault mechanics in southern Alaska, in Active tectonics and seismic potential of Alaska, in Active Tectonics and Seismic Potential of Alaska, Geophys. Mono. Series 179, 321-337, doi:10.1029/179GM18, 2008.

(18) Ali, S. T., A. M. Freed, E. Calais, D. Manaker, and W. R. McCann, Coulomb stress evolution on the Caribbean Plate for the past 250 years from coseismic, postseismic, and interseismic deformation, Geophys. J. Int., 174, 904-918, 2008.

(17) ManakerP, D. M., E. Calais, A. M. Freed, S. T. Ali*, P. Przybylski*, G. Mattioli, P. Jansma, C. Pr´epetit, and J. B. de Chabalier, Interseismic Plate coupling and strain partitioning in the Northeastern Caribbean, Geophys. J. Int., 174, 889–903, 2008.

(16) Kennedy, P. J., A. M. Freed, and S. C. Solomon, Mechanics of faulting in and around Caloris Basin, Mercury, J. Geophys. Res., 113, doi:10.1029/2007JE002992, 2008.

(15) Mahsas, A., K. Yelles, K. Lammali, E. Calais, A. M. Freed, and P. Briole, Shallow afterslip following the May 21st, 2003, Mw=6.9 Boumerdes earthquake, Algeria, Geophys. J. Inter., 172, 155–166, 2008.

(14) Freed, A. M., R. Bürgmann, and T. Herring, Far-reaching transient motions after Mojave earthquakes require broad mantle flow beneath a strong crust, Geophys. Res. Lett., 34, doi: 10.1029/2007GL030959, 2007 (chosen by chief editor to be an AGU journal Highlight).

(13) Freed, A. M., Afterslip (and only afterslip) following the 2004 Parkfield, California earthquake, Geophys. Res. Lett., 34, doi:10.1029/2006GL029155, 2007.

(12) Freed, A. M., S. T. Ali, and R. Bürgmann, Evolution of stress in southern California for the past 200 years from coseismic, postseismic, and interseismic processes, Geophys. J. Inter., 169, 1164-1179, 2007.

(11) Freed, A. M., R. Bürgmann, E. Calais, J. Freymueller, Stress-dependent power-law flow in the upper mantle following the 2002 Denali, Alaska, earthquake, Earth Planet. Sci. Lett., 252, 481-489, 2006.

(10) Freed, A. M., R. Bürgmann, E. Calais, J. Freymueller, and S. Hreinsdóttir, Implications of deformation following the 2002 Denali, Alaska earthquake for postseismic relaxation processes and lithospheric rheology, J. Geophys. Res., 111, B01401, doi:10.1029/2005JB003894, 2006.

(9)   Freed, A. M., Earthquake triggering by static, dynamic, and postseismic stress transfer, An. Rev. Earth Planet. Sci., 33, 335-367, 2005.

(8)   Freed, A. M. and Bürgmann, R., Evidence of power-law flow in the Mojave Desert mantle, Nature, 430, 548-551, 2004.

(7)   Lin, J. and A. M. Freed, Time-dependent viscoelastic stress transfer and earthquake triggering, In: Environment, Natural Hazards, and Global Tectonics of the Earth, ed. Y. J. Chen, Advances in Earth Sciences Monograph, 2, 21 - 38, Higher Education Press, Beijing, 2004.

(6)   Freed, A. M. and J. Lin, Accelerated stress buildup on the southern San Andreas Fault and surrounding regions caused by Mojave Desert earthquakes, Geology, 30, 571-574, 2002.

(5)   Dombard, A. J., and A. M. Freed, Thermally induced lineations on the asteroid Eros: Evidence of orbital Transfer, Geophys. Res. Lett, 29, 1818, DOI 10.1029/2002GL015181, 2002.

(4)   Freed, A. M. and J. Lin, Delayed triggering of the 1999 Hector Mine earthquake by viscoelastic stress transfer, Nature, 411, 180-183, 2001.

(3)   Freed, A. M., H. J. Melosh and S. C. Solomon, Tectonics of mascon loading: Resolution of the strike-slip faulting paradox, J. Geophys. Res., 106, 20603-20620, 2001.

(2)   Freed, A. M. and J. Lin, Time-dependent changes in failure stresses following thrust earthquakes, J. Geophys. Res., 103, 24393-24409, 1998.

(1)   Freed, A. M., J. Lin, P. R. Shaw, and H. J. Melosh, Long-term survival of the axial valley morphology at abandoned slow-spreading centers, Geology, 23, 971-974, 1995.