Abstract
USING instrumental reports from Georgetown, Fordham, Philadelphia, Weston and Guatemala, the United States Coast and Geodetic Survey in cooperation with Science Service and the Jesuit Seismological Association has determined the epicentre of the earthquake of September 20, 1939, to be between Corquin and Ocotepequo on the mountainous border between Honduras and Guatemala in Central America. From readings of seismograms obtained at Pittsburg, Tucson, Ottawa, St. Louis and Fordham, the provisional epicentre of the earthquake of October 23, 1939, has been determined to have been some twenty miles south-west of Tadoussac in the Province of Quebec. Both districts are liable to small earth-quake shocks, though those in Central America are usually somewhat more intense than the Canadian shocks. Further news of these shocks is awaited from the observatories at Guatemala and Ottawa.
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Earthquakes in Central America and Canada. Nature 144, 904 (1939). https://doi.org/10.1038/144904d0
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DOI: https://doi.org/10.1038/144904d0