CU Boulder scientists hope to determine cause of Greeley quake

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GREELEY, Colo. -- Scientists at University of Colorado Boulder are trying to determine what caused a 3.4 magnitude earthquake that was felt in Greeley late May.

The quake, which was centered four miles northeast of Greeley, struck in an area where quakes are considered uncommon.

As part of their research, the scientists hope to determine whether or not fracking played any role in causing the seismic event.

"The fact of the matter is we don't have the data and that's why were out here," said William Yeck, a CU doctoral student who continues to monitor aftershocks in Weld County.

The research is expected to take several months and could be unable to pinpoint the exact cause of the May quake.