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Alpine Fault

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Yanice Melendez

on 27 October 2013

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Transcript of Alpine Fault

Alpine Fault
What type of fault it is?
The Alpine Fault is a right-lateral strike-slip fault located in Southern New Zealand. In these types of faults, one rock body slides past
another one horizontally. No vertical displacement occurs at this fault.
Describe how rock
bodies are moving at
the fault plane.
The bodies of rock move horizontally and vertically. Every 1,000 years they move they lift the Southern Alps 30 meters. Because the faulted rock moves up, scientist can examine these deep rocks and learn more about them.
What tectonic setting is most likely associated with the Alpine fault?
A transform boundary forms between the Pacific Plate and the Indo-Australian Plate. This means that the fault neither creates nor destroys the lithosphere. It's motion is in a sinistral (right-lateral) or dextral (left-lateral) direction that is mostly horizontal.
What type of stress are the rocks at the fault under?
The rocks at the Alpine Fault are under shear stress since the bodies of rock slip horizontally past each other.
By Yanice Melendez
D.L. Earth & Space Science
Major populated areas near your fault and whether or not earthquakes are likely to occur at the fault...
There have been two earthquakes in a decades time in Fiordland. In the past century there have been five earthquakes including the two in Fiordland. Since 1848 there have been seven earthquakes, all above the estimated magnitude of 7. Major earthquakes are not expected in the near future.
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