Keywords: LS-usgs.gif This computer simulation depicts the movement of a deep-seated slump type landslide in San Mateo County Beginning a few days after the 1997 New Year's storm the slump opened a large fissure on the uphill scarp and created a bulge at the downhill toe As movement continued at an average rate of a few feet per day the uphill side dropped further broke through a retaining wall and created a deep depression At the same time the toe slipped out across the road Over 250 000 tons of rock and soil moved in this landslide http //elnino usgs gov/landslides-sfbay/photos html USGS Free for all use PD-USGov Landslides Animated GIF Geological simulations Simulations of landslides |