USGS Multimedia Gallery
Title: "Sand Boil" on Bay Bridge
Description: "Sand boil" or sand volcano measuring 2 m (6.6 ft) in length erupted in median of Interstate Highway 80 west of the Bay Bridge toll plaza when ground shaking transformed loose water-saturated deposit of subsurface sand into a sand-water slurry (liquefaction). Vented sand contains-marine shell fragments.
Location: Bay Bridge, CA, USA
Date Taken: Oct 17 1989
Photographer: J.C. Tinsley , U.S. Geological Survey
Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.
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