Indiana University Bloomington

Michael W. Hamburger

Michael W. Hamburger

Professor of Geological Sciences

Geophysics, Seismology, and Tectonics

Office:   GY415
Phone:   812-855-2934

Educational Background

  • Ph.D., 1986, Cornell University
  • M.Sc., 1982, Cornell University
  • B.A., 1975, Wesleyan University

Research Interests

Michael Hamburger's major research interests are in seismotectonics, dynamics of earthquake and volcanic processes, and application of satellite geodetic measurements to geodynamic problems. He currently has active research programs in the subduction zone environment of the Philippine island arc, as well as in zones of continental extension in the Long Valley Caldera region of California and the intraplate environment of the central U.S. Major field research projects include: (1) analysis of earthquake distribution, focal mechanisms, and deformation patterns associated with subduction and intra-arc deformation in the Philippines; (2) study of crustal deformation using Global Positioning System (GPS) measurements near Taal volcano, Luzon, Philippines; (3) studies of seismicity and crustal deformation in the U.S. midcontinent (Wabash Valley seismic zone of southern Indiana and Illinois); (4) application of GPS measurements to study coupled tectonic and volcanic processes in the Long Valley Caldera of eastern California.


This figure shows a tectonic model of the northern Philippine island arc, based on seismicity, earthquake focal mechanisms, GPS measurements, and satellite imagery. The island arc lithosphere is modeled as a series of elastic blocks, which accommodate large-scale tectonic motions between the Philippine Sea Plate (PHSP) and the Sundaland Block of Eurasia (SUND). The major plate motion is accommodated by deformation along a series of arc-bounding and intra-arc faults that accumulate elastic strain between major earthquakes.

The OIINK seismic experiment is the product of a collaborative research effort between Indiana University, Purdue University, the University of Illinois at Urbana-Champaign, and the Indiana and Illinois state geological surveys. The project seeks to apply state-of-the-art seismic monitoring and data analysis techniques to understand the deep geological structure and seismic activity in North America’s continental interior. The project will help us to better understand the basic geological processes that were involved in the assembly and evolution of our continent, as well as the processes that are continually modifying its structure. Ultimately, the research will help us better understand—and better prepare for—the hazards associated with future earthquakes in our region. The project is part of a national scientific initiative, dubbed "EarthScope" which includes the deployment of "USArray," the largest seismic network in the nation’s history.

Courses Taught

Dr. Hamburger is involved in teaching at the undergraduate and graduate levels. Along with Professor James Brophy, he teaches an undergraduate course for non-science majors entitled "Earthquakes and Volcanoes" (G141). He also teaches the field-based introductory course "Volcanoes of the Eastern Sierra Nevada" (G188), which includes an intensive 2-week field trip to the Eastern Sierra Nevada region of California. At the graduate level, he teaches "Fundamentals of Plate Tectonics" (G554), "Analysis of Earthquake Seismograms" (G515), together with Gary Pavlis, and together with the other geophysics faculty conducts an annual "Seminar in Tectonics"(G637) and "Advanced Geophysics Seminar" (G633) each year.

Graduate Student Projects

Recent Student Theses

Galgana, Gerald (Ph.D., 2008) Geodetic Investigations of Active Crustal Deformation in the Philippine Plate Boundary Zone and the Intraplate Region of the Central United States.

Enneking, Abbie (M.Sc., 2012) Interaction between magmatic and faulting processes in the Long Valley caldera, California . (Joint with Kaj Johnson)

Anna Nowicki (M.S., 2013) Logistic Regression for Seismically Induced Landslide Predictions: Using Uniform Hazard and Geophysical Layers as Predictor Variables continuing as Ph.D. student.

Representative Publications

G.A. Galgana, A.V. Newman, M.W. Hamburger, and R. Solidum, (2014), Geodetic Observations and Modeling of Time-varying Deformation at Taal Volcano, Philippines, J. Volc. Geotherm. Res., v. 271, pp. 11-23.

M.A. Nowicki, D.J. Wald, M.W. Hamburger, M. Hearne, and E.M. Thompson, (2014), Development of a Globally Applicable Model for Near Real-Time Prediction of Seismically Induced Landslides, Engineering Geology, 173, 54-65

Hamburger, M.W., Boyd, O.S., Calais, E., King, N.E., and Stein, S.A., (2014), Advancing geodesy in the U.S. Midcontinent–Workshop report: U.S. Geological Survey Open-File Report 2014–1169, 22 p.

X. Yang, G.L. Pavlis, M.W. Hamburger, E. Sherrill, H. Gilbert, S. Marshak, J. Rupp, and T.H. Larson, (2014). Seismicity of the Ste. Genevieve seismic zone based on observations from the EarthScope OIINK Flexible Array. Seis. Res. Lett.

Hamburger, M.W. Big Red Goes Green! Indiana University’s Emerging Sustainability Initiative, Assn. Adv. Sustainability in Higher Ed., Symposium volume.

M.W. Hamburger, D. Fuente, Navigating Theory and Practice: Indiana University’s Summer Program in Sustainability Amer. Assn. Sustainability in Higher Ed., Symposium volume.

M.W. Hamburger, Green Campus, Green Future, Research & Creative Activity, 13:1, 2-4.

M.W. Hamburger, Y. Kopnichev, A. Levshin, V. Martynov, N. Mikhailova, P. Molnar, P. G. Richards, S. Roecker, D. Simpson, B.E. Tucker, R. Wesson , 2008, In Memoriam: Vitaly Ivanovich Khalturin (1927-2007), Seism. Res. Lett., 78:6, 577–578.


M.W, Hamburger, K.M. Johnson, M.A. Nowicki, T.C. Bacolcol, R. Solidum Jr., G. Galgana, Y-J Hsu, S-B Yu, R-J Rau and R. McCaffrey, 2014, Constraints on Subduction Zone Coupling along the Philippine and Manila Trenches based on GPS and Seismological Data, Abstract T33C-4709, presented at 2014 Fall Meeting, AGU, San Francisco, Calif., 15-19 Dec.

H.J. Gilbert, J. Boschelli, A. McGlannan, G.L. Pavlis, M.W. Hamburger, S. Marshak and T.H. Larson, 2014, Crustal structure across a continental suture zone: a zone of focused crustal thickening, diffuse seismicity, and epiorogenic features in the midcontinent of North America, Abstract S31B-4399, presented at 2014 Fall Meeting, AGU, San Francisco, Calif., 15-19 Dec.

C. Chen, H.J. Gilbert, G.L. Pavlis, M.W. Hamburger, X. Yang, S. Marshak and T.H. Larson, 2014, Is there a zone of weakness beneath the New Madrid and Wabash Valley Seismic Zones? Abstract T13B-4636, presented at 2014 Fall Meeting, AGU, San Francisco, Calif., 15-19 Dec.

Marshak, S., S. Domrois, M. Seid, X. Yang, G. Pavlis, C. Chen, Z. Remtema, J. Weber, M.W. Hamburger, and T. Larson, The Ste. Genevieve Fault Zone of the Cratonic Platform, USA: A surface manifestation of the long-lived and still active crustal boundary between the Ozark Plateau and Illinois Basin [abstract], Geol. Soc. Amer. Abs. w/ Program, 2014.

Marshak, S., S. Domrois, M. Seid, X. Yang, G. Pavlis, C. Chen, Z. Remtema, J. Weber, M.W. Hamburger, and T. Larson, Contrasting Styles of Phanerozoic Intracontinental Tectonics: North America versus Asia [abstract], Geol. Soc. Amer. Abs. w/ Program, 2014.

M. Hamburger, Galgana, G., Q. Chen, and K. Johnson, Geodetic Observations From the Region Surrounding the M 5.2 Mt. Carmel, Illinois Earthquake [abstract], EOS, Trans. Am. Geophys. Un., 89(53), Fall Meet. Suppl. Abstract G21A-0664.

Horton, S.P., S. Ayele, T. Stigall, G. Pavlis, H. Deshon, M. Hamburger, and M. Withers, Aftershocks of the Mw 5.2 April, 18, 2008, Mt. Carmel, Illinois Earthquake [abstract], Seismol. Soc. of Amer., Eastern Section, Program & Abstracts, p. 30.

M.W. Hamburger, G. A. Galgana, K. M. Johnson, R. W. King, Crustal deformation in the Wabash Valley Seismic Zone based on ten years of GPS campaign measurements, UNAVCO Science Workshop, Program & Abstracts.

M. Hamburger, Galgana, G., Q. Chen, and K. Johnson, 2008, Is There a Connection Between Seismicity and Deformation in the New Madrid and Wabash Valley Seismic zones? [abstract], EOS, Trans. Am. Geophys. Un., 88(52), Fall Meet. Suppl. Abs. T51D-0766.

Galgana, G., M. Hamburger, R. McCaffrey, T. Bacolcol, and M. Aurelio, Modeling the Philippine Mobile Belt: Tectonic blocks in a deforming plate boundary zone [abstract], EOS, Trans. Am. Geophys. Un., 88(52), Fall Meeting Suppl. Abstract G21C-0670


Over the past several years, Hamburger has been active in a number of professional organizations. He has currently served on the Steering Committee of the UNAVCO (GPS) Consortium, as an associate editor of the Journal of Geophysical Research, and was elected a Fellow of the Geological Society of America. He is also heavily involved in science outreach programs. Together with Dr. Gary Pavlis and faculty from the IU School of Education he has been a leader in the IU PEPP Earthquake Science Program (, part of a nationwide project to bring seismology research into the public school curriculum. He has also been heavily involved in university and community service. Professor Hamburger is currently serving as Interim Chair of the Department of Geological Sciences, following a four-year term as associate Dean of the Faculties (now Vice Provost for Faculty and Academic Affairs), during which time he led a campus-wide sustainability initiative ( He currently serves as Co-chair of the Campus Sustainability Advisory Board.