Provenance
This work is based on materials provided by the UNAVCO Education and Community Engagement Program, Plate Boundary Observatory, and the GAGE Facility supported by the National Science Foundation (NSF) and National Aeronautics and Space Administration (NASA) under NSF award: EAR 1261833 and the American Recovery and Reinvestment Act. Authors are Roger Groom (Mt. Tabor Middle School), Cate Fox-Lent (UNAVCO), Shelley Olds (UNAVCO), Nancy West (Quarter Dome Consulting), and Kathleen Alexander (UNAVCO).

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