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Paleoseismic investigations in fluvial deposits frequently use large-scale (many centimeters to decimeters wide) ground-failure features of liquefaction origin as indicators of larger earthquakes (i.e., exceeding M ~6). Such large features are not the only signature of seismicity, however. Seismic shaking often produces an abundance of small-scale features (millimeter to centimeter in size) such as sills, small clastic dikes, and ground fractures, which can vary widely in height and range from paper-thin to a few centimeters wide. These small-scale seismic signatures commonly form in field settings where large liquefaction features are absent, such as regions with a reduced susceptibility for liquefaction...

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