Confidence Level 2
Confidence Level 2 : In the Neotectonics Database, we define four categories of faults (Classes A-D) based on demonstrable evidence of neotectonic movement (known or presumed to be associated with large-magnitude earthquakes). [Neotectonics database field. Class Definitions: (a) Geologic evidence demonstrates the existence of a fault of neotectonic origin, whether the fault is exposed by mapping or inferred from liquefaction or other deformational features. (b) Geologic evidence demonstrates the existence of neotectonic deformation, but either (1) the feature might not extend deeply enough to be a potential source of significant earthquakes, or (2) the currently available geologic evidence is too strong to confidently assign the feature to Class C but not strong enough to assign it to Class A. (c) Geologic evidence is insufficient to demonstrate (1) the existence of neotectonic faulting, or (2) slip or deformation associated with the feature. (d) Geologic evidence demonstrates that the feature is not a neotectonic fault or feature; this category includes features such as joints, landslides, erosional or fluvial scarps, or other landforms resembling fault scarps but of demonstrable non-tectonic origin
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