Are branch faults the “on-ramps” that lead to great continental transform earthquakes?
The five largest continental transform earthquakes since 2000 all originated on a branch of the main fault—and two researchers predict that the next great earthquake of this type will also get its start on a branch or splay fault.
Last year’s magnitude 7.8 Pazarcık earthquake in Türkiye was one of these large and damaging earthquakes, where two continental tectonic plates slide past each other horizontally. That earthquake began on a branch fault, as did the 2001 magnitude 7.8 Kokoxili earthquake in northern Tibet, the 2002 magnitude 7.9 Denali earthquake in Alaska, the 2008 magnitude 7.9 Wenchuan earthquake in China, and the 2016 ...










