Portal:Earth sciences/DYK/29

Castle Lake viewed from the air, 2016

... that Castle Lake (pictured) was created by the 1980 eruption of Mount St. Helens?
... that Typhoon Caitlin provided drought relief to Okinawa, where reservoir levels rose from 35% to over 80% capacity?
...that the Tibetan Plateau is known as the "roof of the world"?
...that the U.S. Coast and Geodetic Survey was responsible for American weights and measures from 1836 until the establishment of the National Institute of Standards and Technology in 1901?
... that the 2007–2008 Nazko earthquakes in British Columbia, Canada, are the only recorded earthquakes in the Canadian Cordillera away from the coast resulting from magma moving in the Earth?
... that T. Rex and the Crater of Doom details the development of the hypothesis that dinosaurs were wiped out by an impact event?

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