Earthquakes can cause changes to water table

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Diane Sieker photo
Earthquakes are once again in the news, after a massive shaker was felt in Alaska recently. What is not commonly known is that earthquakes can affect the levels and flow of groundwater. The United States Geological Survey is closely monitoring wells across the nation and recording groundwater changes caused by the powerful magnitude 8.2 earthquake that struck off the coast of Alaska July 28 at 10:15 p.m. local time. Quakes can even affect water levels thousands of miles away from the earthquake epicenter. A USGS groundwater well in Anderson County, South Carolina, recorded a change, and more data is being collected nationwide. Hydrogeology is the area of geology that studies the distribution and movement of groundwater in the soil and rocks of the Earth’s crust. Hydroge
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