Potential for surface rupture from seismic activity in the Richardson fault array

育空地区北部的韦尔内克山脉高耸崎岖，海拔高达1500米。几个突出的断层统称为理查森断层阵列，似乎记录了韦内克山脉及其以北的理查森山脉最近的差异运动。这个阵列横跨了以前形成的区域褶皱，这些褶皱形成于大约9000-6000万年前。断层是否只比褶皱略年轻，或者它们是否一直活跃到更近的时代，还不得而知。韦尔内克和理查森山脉是加拿大地震最活跃的地区之一，这意味着理查森断层阵列继续活跃，至少在深处，但可能也在地表。

The Wernecke mountain range of northern Yukon is high and rugged, rising up to 1500 m above the surrounding terrain. Several prominent faults collectively termed the Richardson fault array appear to record the most recent differential motions in the Wernecke Mountains, and the Richardson Mountains to the north. This array cuts across previously formed regional folds that developed approximately 90-60 million years ago. Whether the faults are only slightly younger than the folds, or if they remained active into more recent times, is unknown. The Wernecke and Richardson mountains are one of the most seismically active regions in Canada, implying that the Richardson fault array continues to be active, at least at depth but possibly also at the surface.