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Las Vegas Valley Fault Map

The map below shows Quaternary fault traces in and adjacent to Las Vegas Valley (black lines). The fault bounding Frenchman Mountain (stippled area at right) has the ability to generate earthquakes. The origin of faults within Las Vegas Valley is still debated by scientists: they are likely from earthquakes; alternatively they may have been produced by prehistorical lowering of the water table and differential compaction. The gray contours show the degree of modern land subsidence due to the pumping of groundwater. The dark areas labeled with letters are regions of active fissure development, which are almost certainly caused by groundwater withdrawal.

Prepared by John Bell of the Nevada Bureau of Mines and Geology

Las Vegas fault map
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Page maintained by: John Louie
Last modified: 3/10/2003