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William Maurice Ewing 1906–74, American oceanographer and geologist, b. Lackney, Tex., grad. Rice Institute, now Rice Univ. (B.S., 1926; M.A., 1927; Ph.D., 1931). He taught physics and geology at the Univ. of Pittsburgh and Lehigh Univ. and was a research associate at Woods Hole Oceanographic Institution in Massachusetts. In 1935, he took the first seismic measurements in open seas (Atlantic Basin at the Mid-Atlantic Ridge and in the Mediterranean and Norwegian Seas) and developed a seismometer that has become a standard. He proposed that earthquakes are associated with central oceanic rifts and suggested that seafloor spreading may be worldwide and episodic in nature. In 1939, he took the first deep-sea photos. In 1944 he joined the faculty of Columbia Univ. and in 1949 founded and became the first director of Columbia's Lamont Geological Observatory (now Lamont-Doherty Geological Observatory) at Palisades, N.Y. Lamont-Doherty now holds one of the world's largest collection of deep-sea cores because of Ewing's many oceanic explorations. In 1960, Ewing became the first recipient of the Vetlesen Prize, an award given by the Vetlesen Foundation to honor leaders in the earth sciences.
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