Title: Vent of Sand Volcano Description: Vent of sand volcano produced by liquefaction is about 4 ft across in strawberry field near Watsonville. Strip spanning vent is conduit for drip irrigation system. Furrow spacing is about 1.2 m (4 ft) on center. Location: Watsonville, CA, USA Date Taken: 10/17/1989 Photographer: J.C. Tinsley,
U.S. Geological Survey
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