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Dr. Thorne Lay, Distinguished Professor and Director of the Center for the Study of Imaging and Dynamics of the Earth at U. California Santa Cruz, presents “Use of Seismic, Geodetic and Tsunami Data to Determine Earthquake Rupture Models”.
“Determination of the space-time history of rupture during large earthquakes is valuable for understanding frictional properties of plate boundaries, seismic cycles of strain accumulation and release, and partitioning of fault offset into various modes of stable and unstable slip. Models of faulting slip distributions are improved when diverse data sets with complementary sensitivity to the source complexity are utilized. Examples are shown for several recent major and great earthquakes, with emphasis on the importance of tsunami wave observations for constraining offshore fault slip.”