Photomosaics and logs of trenches on the San Andreas Fault at Arano Flat near Watsonville, California
Open-File Report
2003-450
By: Thomas E. Fumal, Gordon F. Heingartner, Laura Samrad, Timothy E. Dawson, John C. Hamilton, and John N. Baldwin
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Abstract
We present photomosaics and logs of the walls of trenches excavated for a paleoseismic
study at Arano Flat, one of two sites along the San Andreas fault in the Santa Cruz Mountains
on the Kelley-Thompson Ranch. At this location, the fault consists of a narrow
zone along the northeast side of a low ridge adjacent to a possible sag pond and extends about
60-70 meters across a broad alluvial flat. This site was a part of Rancho Salsipuedes beginning
in 1834 and was purchased by the present owner’s family in 1851.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Photomosaics and logs of trenches on the San Andreas Fault at Arano Flat near Watsonville, California |
| Series title | Open-File Report |
| Series number | 2003-450 |
| DOI | 10.3133/ofr03450 |
| Year Published | 2004 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Earthquake Science Center |
| Description | 3 Plates: 83.52 x 34.55 inches and smaller |
| Country | United States |
| State | California |
| City | Watsonvilles |
| Other Geospatial | Arano Flat;San Andreas Fault |
| Google Analytic Metrics | Metrics page |