Monday, May 3, 2010

Chile 2010 Earthquake Seminar Tonight

Structural engineering professor Tara Hutchinson, Department of Structural Engineering UC San Diego will give a talk tonight about the magnitute 8.8 earthquake that struck central Chile on February 27.

The talk title: “Ground Failure Impacts on Infrastructure during the 2010 Maule, Chile Earthquake”

When? Monday May 3, 6 PM to 7 PM

Where? UCSD, Center Hall, Room 109

The talk is aimed at an undergraduate level you'll have to think, but it should be (mostly) understandable.

The 2010 Maule, Chile Earthquake impacted a region 600 km by 100 km and 80% of the population. A tsunami was initiated by the rupture, devastating portions of the coastline and resulting in the loss of hundreds of lives. Over 500,000 homes were destroyed and economic estimates are on the order of 15-20Billion USD (10-15% of Chile’s GDP).

This earthquake tested numerous modern structures and was therefore the subject of several post-earthquake reconnaissance efforts. Geotechnical impacts on structures during this event were manifested through strong ground shaking and site effects, liquefaction and lateral spreading, and slope instability. Where severe ground failure occurred, the impact on infrastructure such as buildings, transportation, and port structures was significant. This presentation will provide an overview of the engineering seismology and ground motion characteristics for this event and resulting damage patterns, with particular focus on the impacts of ground failure on the built environment. Liquefaction significantly impacted a number of buildings, while liquefaction-induced lateral spreading resulted in significant structural damage to bridges and waterfront structures. Important case histories from this event will be described in the discussion.

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