In this final installment of the winter Book Club, we wrap up a winter of exploring The Stillness, learning how volcanologists research lava flows and crater tremors, and even diving into the center of the earth. Ira joins Science Friday SciArts producer Christie Taylor, Caltech seismologist Lucy Jones, and University of Colorado disaster sociologist Lori Peek to talk about the power of earthquakes, volcanoes, and other hazards that shape societies. We also talk about how a natural hazard becomes a human-scale disaster—and who suffers most when a community is insufficiently prepared. Plus, a roundup of the week's biggest science news, and a story from Arizona about dealing with drought. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

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“What did the council decide on item 42?” — answered with the speaker and the moment.