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The Mw 7.1 Puebla, Mexico Earthquake of 19 September 2017 – the anniversary of the Mw 8.0 Michoacan earthquake of 1985.

By Paul Somerville, Risk Frontiers As reported by the USGS, the September 19, 2017, Mw 7.1 Puebla earthquake in Central Mexico occurred as the result of faulting within the subducted Cocos plate at a depth of approximately 50 km and…