What do you call a fault that has had displacement within the last 11,000 years?

The term "Holocene Fault" is used to describe a fault that has experienced displacement within the last 11,000 years, which corresponds to the Holocene epoch. This period began at the end of the last Ice Age and is significant for geological and environmental changes that have affected the Earth. Recognizing faults that have been active during this timeframe is crucial for understanding seismic hazards in an area, as it helps geologists assess the likelihood of future earthquakes.

In contrast, while an "Active Fault" is generally used to refer to faults that have had displacement in the present geological timeframe (which can be broader than just the Holocene), "Holocene Fault" specifies the recency of the activity. A "Growth Fault" describes a different mechanism related to sedimentary processes rather than a time frame of displacement. "Historic Fault" typically refers to fault activity that has been recorded in historical documents, which does not provide the same time specificity as Holocene does. Thus, the designation of a fault as "Holocene Fault" accurately conveys both the timing and significance of its activity in relation to recent geological events.