An 8.0-magnitude-plus earthquake hasn't rumbled beneath the Pacific Northwest since the 1700s. Now, the region is due for the next "big one" and a subsequent tsunami. Coastal Indigenous communities could be severely affected. (Already, the Shoalwater Bay Tribe is constructing a tsunami tower to give their residents a better shot at survival in the face of this kind of natural disaster.) Clues from the past—paired with modern-day science—can help us better understand why this area is at risk and how to best mitigate an earthquake and tsunami's effects. Chapters 00:00 Introduction 00:32 The Last Major Earthquake in the US 02:13 Evidence of Major Earthquake and Tsunami in the US 04:09 Indigenous Communities Prepare for Future Earthquake and Tsunami earthquake tsunami warning, us earthquake, us tsunami, what causes a tsunami, how to survive a tsunami, what is a tsunami, what is an earthquake, what causes an earthquake #earthquake #tsunami #naturaldisaster #novapbs PRODUCTION CREDITS: Produced by: Angelica Coleman Jay Colamaria Production Assistance: Lorena Lyon Christina Monnen Caitlin Saks Music: APM Archival: Amiran White Degenkolb Engineers and Rice Fergus Miller Edgeworx Studios, LLC Shoalwater Bay Indian Tribe Storyblocks Weave Ltd. © WGBH Educational Foundation 2021