Search Tags:  USGS

Herbicides likely source of growing intersex fish problem (Video)

Ten years after the discovery of the first intersex fish in the Potomac River, leading researchers are closing in on the chemicals and sources producing fish with immature eggs in the sex organs of male smallmouth and largemouth bass. The research suggests the cause is not what researchers initially thought -- the flushing of prescription drugs.

Tags: Potomac River, Troubled Waters, intersex fish, smallmouth bass, largemouth bass, Neal Augenstein, farming, prescription drugs

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Va. earthquake is aftershock of major 2011 shake

An earthquake in Virginia confirmed by the U.S. Geological survey is the spawn of a massive quake that rocked the region about two years ago.

Tags: Nick Ianelli, Washington Monument

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2.1 magnitude earthquake hits in Maryland

The U.S. Geological Survey is reporting a minor earthquake shook eastern Frederick County near the Carroll County line, but area residents likely didn't even notice the minor quake Saturday morning.

Tags: earthquake

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USGS: Glut of quakes likely manmade, fracking possible cause

Last year saw a sharp rise in 3.0-magnitude quakes or stronger in the U.S. midcontinent, a continuing trend that prompted the U.S. Geological Survey -- the government's main source for Earth sciences -- to investigate the root cause.

Tags: fracking, earthquake, quake, Bill Ellsworth, David J. Hayes, Paul D. Shinkman

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