Abstract
ON November 15 at about 3h. G.M.T. an earthquake was registered on the seismograms at the observatories of Weston, Georgetown, Ottawa, Pittsburgh, Fordham, Williamstown and Philadelphia. The United States Coast and Geodetic Survey, in co-operation with Science Service and the Jesuit Seismological Association, has determined the probable epicentre of this shock to have been near latitude 39° 45′ N., longitude 75° 18′ W., and that it had an origin time 2h. 53m. 48s. G.M.T. with a depth of focus near 25 km. below the earth's surface. Large earthquakes are very rare in these regions, though small shocks and tremors have occurred very occasionally in the past. That the present shock released only a very small amount of energy, thus being no exception, is shown by the facts that no damage has been reported in this well-populated region, and that the earthquake was not registered on the seismograms obtained at Kew.
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Earthquake in New England. Nature 144, 1043–1044 (1939). https://doi.org/10.1038/1441043e0
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DOI: https://doi.org/10.1038/1441043e0