Past Presentations

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Recent Chilean Earthquakes: Lessons for the Geotechnical and Structural Engineering Practice

By Christian Ledezma, Phd

This is a recording of Professor Christian Ledezma’s presentation to the Seattle Geotechnical Group on October 1, 2020.  The presentation focuses on a few major past earthquakes of Chile and their impact on infrastructure from both geotechnical and structural perspectives.

Professor Ledezma is Head of the Structural and Geotechnical Engineering Department at Pontificia Universidad Católica de Chile (PUC). Professor Ledezma is also the vice-president of ACHISINA, Chile’s Association of Earthquake Engineering, and an active member in the discussion and elaboration of Chilean seismic codes.

A Tale of Three Dams

By Scott Lindvall, VP and Senior Principal Geologist, Lettis Consultants International, Inc.

This is a recording of Mr. Lindvall’s presentation to the Seattle Geotechnical Group on November 19, 2020.  The presentation focuses on three dams (Tinemaha, North Haiwee, and South Haiwee) in the Owens Valley that are located on or adjaecent to active faults.

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