Silver, copper eclipse gold as top metals bets on supply fears
Since bullion hit a record on Oct. 20, it’s moved mostly sideways, while silver has gained more than 11% to a fresh record and copper has climbed almost 9%.
Wastewater injection may be cause of Oklahoma 'earthquake swarm,' USGS study suggests
Between 1975 and 2008, Central Oklahoma experienced about one to three manginute 3.0 earthquakes per year. Since 2009, that figure has jumped to around 40 per year. In an effort to explain these tremors, the US Geological Survey (USGS) and...
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