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What is fracking?

The oil and gas industry has been revolutionized in the last decade by a technique known as hydraulic fracturing, or hydro-fracking, or simply "fracking.''

By Mark Boswell

May 10, 2018 — 5:54pm

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Map of recent quakes that are occurring in both the United States and around the world. The data is from the United States Geological Survey's (USGS). Earthquake information is extracted from a merged catalog of earthquakes located by the USGS and contributing networks. Earthquake data will be available within a few minutes for California events, and within 30-minutes for worldwide events.

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