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Powerful+7.5+quake+jolts+Peru-Brazil+border
Wednesday, 25 November 2015 - 7:55
Powerful 7.5 quake jolts Peru-Brazil border
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M 7.6 earthquake was the first of two similarly sized events near the Peru-Brazil border in southeast Peru. Both earthquakes occurred as the result of normal faulting at a depth of approximately 600 km, almost 1000 kilometers east of the Peru-Chile Trench within the subducted oceanic lithosphere of the Nazca plate.

Focal mechanisms indicate rupture occurred on either a north or south-southeast striking, moderately dipping normal fault. At the location of the earthquakes, the Nazca plate subducts to the east under the South America plate at a velocity of about 69 mm/yr.



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