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the Liquiñe-Ofqui fault had a 9.07 strike-slip sub-event along with the 9.37 main thrust sub-event which could help account for how the plate boundary event seemingly "overspent" its tectonic budget. In other words, the previous and current more widely accepted explanation for the earthquake involves the Peru-Chile Trench slipping further than its accumulated slip deficit (the amount of slip available for an earthquake) should allow. The alternative explanation,

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