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Breaking News: 7.1 Magnitude Quake Kills Dozens As Buildings Collapse In Mexico (Posted 09/19/17 at 3:13 p.m.)

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California Geological Survey's new seismic map shows 50 new surface faults that have been discovered over the last two decades.

Above: California Geological Survey's new seismic map shows 50 new surface faults that have been discovered over the last two decades.