The California Geological Survey creates maps showing which areas scientists expect a major tsunami would flood. The latest update of this map shows that broader swaths of the Bay Area are likely to be affected than previous maps indicated — for example, the San Francisco Zoo is now in an evacuation zone. Rick Wilson, a senior engineering geologist with the California Geological Survey and manager of its tsunami program, joined “Civic” to outline some tsunami basics and explained how and why these maps are made and updated.
A segment from our radio show and podcast, “Civic.” Listen at 8 a.m. and 6 p.m. Tuesdays and Thursdays at 102.5 FM in San Francisco, or online at ksfp.fm, and subscribe on Apple, Google, Spotify or Stitcher.