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​The earthquake cycle and lithospheric deformation in the continents

Published on: 13-May-2019

​Event Type: Seminar

Event Date: 13 May 2019 - 4:00pm to 5:00pm

Venue: ASE 3D Viz Laboratory Room (N2-B1c-16c)

Speaker: Dr Jeff Freymueller

About the speaker:

Jeff Freymueller has held the Thomas A. Vogel Chair for Geology of the Solid Earth at Michigan State University since 2018, after 23 years on the faculty at the University of Alaska Fairbanks. He graduated from the University of South Carolina with a PhD in Geology in 1991, then did postdoctoral work at Stanford University. Freymueller’s research focuses on the measurement and modeling of solid earth deformation caused by a variety of sources, including active tectonics and earthquakes, volcanism, and hydrological and cryospheric mass variations. Many of these processes also present hazards to society, and the study and characterization of these hazards is a basic step toward hazard and risk mitigation. In parallel, he works on improving the measurements themselves, and the more accurate definition of reference systems for the measurement of these motions.

About the event:

Tectonic deformation in the continents is often distributed over a wide area. The India-Eurasia collision in Asia, and the Pacific-North America-Juan de Fuca plate boundary in western North America are classic examples of distributed plate boundary deformation. Present-day velocities from GPS measurements provide a powerful data set for measuring plate boundary kinematics and estimating rates of motion on faults. However, these data depend not only on the long-term geological motions, but also on deformation associated with the earthquake cycle. This talk will review basic earthquake cycle models and geodetic block models, and also explore some of the time-dependent aspects of earthquake cycle deformation.

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