The country's economy could be a big casualty in the event of an earthquake in the Midwest's New Madrid seismic zone, according to an expert. Severed fiber-optic cables, unusable highways and cracked oil and gas pipelines could all result. Data suggest there is a 50% chance of a magnitude 6.0 or greater quake in the next 50 years. Damage would be in the tens of billions of dollars.
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