Weeks Lecture – Patricia Gregg – Sep 26th, 2014, Friday, 3:30 PM, Room AB20 – Weeks Hall

Weeks Lecture

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Patricia Gregg
University of Illinois – Urbana-Champaign

Sep 26th, 2014, Friday, 3:30 PM, Room AB20 – Weeks Hall
Title: The Mechanics of Triggering Catastrophic Caldera-Forming Eruptions

Brief Description: Catastrophic caldera-forming super-eruptions, such as those produced by Yellowstone, Long Valley, and Toba volcanoes, are among the greatest geologic hazards on Earth. These eruptions result in widespread regional devastation and can have a global climate impact. While great advancements have been made in understanding how large silicic reservoirs develop and evolve, the mechanics of triggering their evacuation remains a highly debated topic. In this presentation, I will review the current state of our understanding of caldera forming systems and present new thermomechanical models that seek to answer the critical question: How are super-eruptions triggered?