Abstract
TEN relatively large earthquakes have been recorded at Kew Observatory during the period February 2-March 16. The one which gave rise to the greatest amplitudes was that received on March 1, compressional at 3h. 57m. 22s. G.M.T., the epicentre being near Larissa in Greece (NATUBE, March 8, p. 292). The S wave arrived at 4h. 1m. 4s. G.M.T., LQ at 4h. 2.5m., and LR at 4h. 3m. There were three maxima, the first being the greatest, and having an amplitude of 150μ. The estimated epi-central distance from Kew was 2220 km., all calculations and readings being provisional. Three earthquakes were recorded on March 16. The first, at 7h. 54m. 17s. was probably from an epicentre 8480 km. distant, whilst the second at 16h. 38m. 52s. was most likely from an epicentre 1770 km. distant and may have been the shock reported to have been felt at Trapani and Palermo in Sicily. It gave rise to amplitudes of 35μ at Kew. The third shock, at 18h. 52m. 9s. beginning with a dilatational pulse, may have been an aftershock of the Palermo shock, though at Kew exact reading of the seismogram was difficult owing to confusion caused by microseisms.
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Recent Earthquakes Recorded at Kew. Nature 147, 414 (1941). https://doi.org/10.1038/147414a0
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DOI: https://doi.org/10.1038/147414a0