Earthquakes and volcanoes are major geologic phenomena that provide insight about the nature of the Earth hundreds of kilometers beneath our feet. This course offers a broad overview of the geologic principles that govern earth processes at tectonic plate margins. Students will learn about architecture, processes, and evolution of plate margins from the mantle to the crust. By the end of the course, students will be able to use observations on the Earth's surface to predict deep Earth processes associated with earthquakes and volcanoes. An emphasis will be placed on the impact of these phenomena on civilization from a historical and a planning perspective.