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The 2007 Pisco, Peru earthquake ruptured two patches (red contour lines) of the plate interface along which the Nazca plate slides under South America at about 6 cm/yr (red arrows).

The black dots show the aftershocks triggered by this earthquake.

Two other large earthquakes ruptured the plate interface in 1974 and 1996 (green areas).

Press release | Publication1 | Publication2

Credit: Tectonics Observatory, California Institute of Technology

Tectonics Observatory :: California Institute of Technology
Last updated: September 25, 2009 :: Contact Us