TheUlakhan Fault is aleft-lateraltransform fault that runs along the boundary between theNorth American plate and theOkhotsk microplate in northeast Asia. It runs from atriple junction in theChersky Range in the west, to another triple junction with theAleutian Trench and theKuril Trench in the east. From the offset of dated geomorphological features, a slip rate of 5.3±1.3 mm per year has been measured, consistent with estimates fromGPS-constrained global plate models. The analysis offault scarps along the fault zone in the Seymchan Basin suggests that the fault is characterised by occasional large (Mw>7.5) earthquakes.[1]
