Dr. Debbie Weiser travels to communities post-disaster, such as Japan and China, to evaluate earthquake damage in ways that might help save lives during the next Big One. Geologist Edith Carolina Rojas climbs to the top of volcanoes or searches barren deserts for volcanic evidence to measure seismic activity. Geophysicist Lori Dengler works with governments to provide guidance and protection against future tsunamis.
 
With tenacity, intellect, and innovation, these women have crushed obstacles in society, in the lab, and out in the field. Their accomplishments leave aftershocks as they work toward revealing answers to the many riddles that lie behind earthquakes, saving lives by teaching us how to prepare for these terrifying disasters.