Abstract
FOUR earthquakes of considerable severity have been registered by seismographs in Europe recently. The first, on April 28, was registered at De Bilt (Holland) at Oh. 38m. 15s. G.C.T. and may have been distant a little more than 24°. The second caused the needle on a seismograph in London to swing about 3/5 in. It was recorded at De Bilt on April 30 at 3h. 12m. Os. G.C.T., and at Uccle at 3h. 12m. 12s. Since the epicentral distance was greater than 100°, observations are awaited from more distant observatories before further computations are made. The third was on May 1, and this is discussed below, being the most important of the four. Thefourth was recorded at Kew on May 2 at 13h. 27m. 12s. and may have beenan aftershock of the one on the previous day, though a slightly nearer epicentre may be indicated.
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Earthquakes Registered at European Observatories. Nature 143, 818 (1939). https://doi.org/10.1038/143818a0
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DOI: https://doi.org/10.1038/143818a0