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Rainfall thresholds in Contra Costa County (sorted by Threshold type) |
| Nation | Zone | Threshold type | Landslide code | Equation | Range | Notes | Reference | Image |
| USA | Contra Costa County | E | Sh | E > 177.8 mm | n.a. | Abundant landslides | Nilsen TH, Turner BL (1975) Influence of rainfall and ancient landslide deposits on recent landslides (1950-1971) in urban areas of Contra Costa County, California. US Geological Survey Bul 1388 | Graphic |
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