2002 M7.9 Denali Fault Earthquake
The fault rupture for the Denali Fault Earthquake was a complex rupture, occurring on three separate faults. Rupture started on the previously unrecognized Susitna Glacier Thrust fault, a splay fault south of the McKinley strand of the Denali fault system (DFS). The rupture then transferred onto the main strand of the DFS and continued eastward as a right-lateral strike-slip event for ~137 miles (220 km) until it reached the Totschunda fault. At that point, it right-stepped onto the more south-easterly trending Totschunda fault rupturing an additional ~44 miles (70 km).
A team of geologists surveyed the total length of the ruptured faults and reported 4 meters of maximum vertical offsets on the Susitna Glacier Thrust Fault and maximum horizontal offsets of 8.8 meters west of the Denali and Totschunda fault junction.