USGS maps underwater part of Big Sur landslide at Mud Creek

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Scientists from the USGS Pacific Coastal and Marine Science Center mapped the offshore extent of the Mud Creek landslide on California’s Big Sur coast on July 11, 2017.

Photo of the Mud Creed landslide near Big Sur, California

A view of the Mud Creek landslide near Big Sur, California, from USGS research vessel Snavely

Scientists from the USGS Pacific Coastal and Marine Science Center mapped the offshore extent of the Mud Creek landslide on California’s Big Sur coast on July 11, 2017. They used sonar to measure bathymetry (seafloor depth) along a series of overlapping swaths to produce a map of the underwater slide debris and surrounding seafloor. The mapping is part of an effort to understand what happens to landslide material after it enters the ocean. The team has been collecting and analyzing air photos of the Mud Creek area before and after the May 20 landslide to monitor changes in ground elevation.

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