Deep Learning for Earthquake Aftershock Patterns

EPISODE 311
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Banner Image: Phoebe DeVries, Brendan Meade - Podcast Interview
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About this Episode

Today we are joined by Phoebe DeVries, a postdoctoral fellow in the Department of Earth and Planetary Sciences at Harvard and assistant faculty at the University of Connecticut, and Brendan Meade, Professor of Earth and Planetary Sciences and affiliate faculty in computers sciences at Harvard. Phoebe and Brendan's work is focused on discovering as much as possible about earthquakes before they happen, and by measuring how the earth's surface moves, predicting future movement location. In this episode, we discuss their recent paper, ‘Deep learning of aftershock patterns following large earthquakes', and the preliminary steps that guided them to using machine learning in the earth sciences. It all started with the 2.5 million CPU hours it took high-performance computing to explain the delayed triggering of a small number of earthquakes. This unsurprisingly motivated the team to train a neural network to emulate the HPC code at a much faster rate. Fast forward to today, Phoebe and Brendan's current research involves calculating stress changes in the crust and upper mantle after a large earthquake and using a neural network to map those changes to predict aftershock locations. We delve into the complex systems that encompass earth science studies, including the approaches, challenges, surprises, and results that come with incorporating machine learning models and data sets into a new field of study.

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