Eltanin fault system

The Eltanin fault system (Eltanin fracture zone) is a series of six or seven dextral transform faults that offset the Pacific-Antarctic Ridge, a spreading zone between the Pacific plate and the Antarctic plate.

[2] The affected zone of the Pacific-Antarctic Ridge is about 800 km (500 mi) long, between 56° S, 145° W and 54.5° S, 118.5° W,[3] southwest of Easter Island, and about as far as one can get from land on planet Earth (48°52.6′S 123°23.6′W).

[2] They are about 1,000 km (620 mi) long and have been in the last 50 years the location of many earthquakes of up to Mw6.4.

[5] One segment of the Heezen transform has ruptured with an average repeat interval of 4 years.

[6] To the northwest, in an almost linear fashion as seafloor features, are the Hollister Ridge and the Louisville Seamount Chain.