The April 2014 Chilean earthquake occurred as the Nazca Plate slipped eastward beneath South America's continental crust.
Notes on verification
Confirmed by USGS-sourced reporting and multiple peer-reviewed studies describing the Nazca Plate's eastward subduction beneath South America as the mechanism of the April 2014 Iquique earthquake. [cascade flags: aggregator_dropped_primary_exists | tier=silver indep_score=1.0 clusters=2 claim_tier=notable]
Sources
- What Caused the Chilean Earthquake? Faults Explained (seed:environment_and_wildlife)
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5363922/ (corroboration)
- https://www.sciencedirect.com/science/article/abs/pii/S0012821X16301844 (corroboration)