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Earthquakes during July

Nature volume 154, page 665 (25 November 1944) | Download Citation



DURING July 1944, twenty-seven earthquakes and earth tremors were registered by the seismographs at the observatory at Toledo, Spain. Those on July 17 (epicentral distance 112·5°), 19 (epicentral distance 119·1°), and 27 registered the greatest amplitudes at Toledo, whereas the shock on July 18 may have been a local tremor. At Wellington, New Zealand, during the same month, five strong shocks were registered. On July 10 the shock is thought to have originated south of the Kermedecs. On a basis of instrumental evidence received from thirteen other stations, the United States Coast and Geodetic Survey has estimated the epicentre of the shock of July 27 at Oh. 04·2m. G.M.T. to have been near 54·5° N., 166·5° W., which is in the Aleutian Islands, and the depth of focus to have been rather greater than normal. In New Zealand during July fourteen shocks were reported as having been felt. The greatest of these were of intensity 4 on the Modified Mercalli scale, and occurred on July 1 at Opotiki and Whaka-tane, and on July 11 at Karamea and Westport.

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