The Quake Equation

Big earthquakes can change the Earth’s rotation.And Harvard geophysicist John Shaw says these giant events can teach us a lot. He traces our understanding from ancient myths to modern studies and unpacks what;s really going on beneath the surface. John reveals why a magnitude 7 earthquake releases 30 times the energy of a WWII-era atomic bomb, how the largest quakes make the Earth ring like a bell for days, and why the deadliest earthquake in history wasn't even the biggest one.Learn more about NOVA and visit our YouTube channel.--------------------------Guest Bio:John Shaw is the Harry C. Dudley Professor of Structural and Economic Geology at Harvard University, where he also serves as Vice Provost for Research. A structural geologist and applied geophysicist, he studies the faults deep beneath our feet, with research spanning earthquake hazards, energy systems, and carbon storage.