Portal:Earth sciences/DYK/27

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 * ... that El Tatio (pictured) is the largest geyser field in the southern hemisphere and one of two worldwide with the highest elevation?
 * ... that although the 8.0Mw 1679 Sanhe-Pinggu earthquake devastated towns near Beijing, China, during the Qing dynasty, another large earthquake along this fault is not expected for 6,500 years?
 * ... that Typhoon Page was the record-setting sixth tropical cyclone to hit Japan in 1990?
 * ... that forest rings had gone unnoticed by geologists until aerial photography became a common surveying tool in the 1950s?
 * ... that Calabria was once attached to Sardinia before it migrated to Sicily?
 * ... that Russian painter Karl Bryullov inserted himself into his picture of the eruption of Mount Vesuvius in The Last Day of Pompeii?