STUDY OF EARTHQUAKES
TM> PiTSH COMMITTEE’S RF.POIIT. LOXDOX, Sept. 10. For 31 years a committee appointed by the British Association has published an annual report oil seismological investigation. Under the chairmanship of Professor 11. 11. Turfior it works in close association with an international body which with financial help from the Royal Society is trying to In ing up to date summaries of the observed details of earthquakes all over tile world. Summaries up to the end of 1923 have been issued, and those for the greater part of 1921 are well in hand. From these exact knowledge of the transmission of earthquake shocks is gradually being obtained, and the existence of anomalous eases is being verified.
When it happens that there are a number of good recording stations reasonably near the centre of an earthquake, special information can be derived from their records as to the nature of the upper layers of the earth's crust. The .Jersey and Hereford earthquakes of 192(5 yielded specially useful results in that respect. British earthquakes have been rare, hut in August, 192(3, there was one at Hereford and Ludlow, on January 21th, 1927, one in Scotland, and on February 17th last one in Jersey. Yorkshire appears to have had an earthquake at Tadcnster on Wednesday evening, but Scisiiiological apparatus is not of a kind that can he carried about, and the members of the committee in their report to the section were reticent as to this manifestation.
The committee reported that the Palestine earthquake of July 11th. although serious and causing much local injury and many deaths, was not of unusual violence. The intensity of its indications on the Oxford seismographs was much less than in the case of the earthquake in China on May 22nd, although the latter was at a much greater distance. The University of Oxford has sanctioned the extension of the university observatory to provide a home for two Alilne-Shaw pendulums, and a bequest of £IOOO from the late Professor John Milne, one of the chief founders of seismology, lias been put in a trust fund, tlie income to lie at the disposal of the chairman for the time being of the Seismological Committee of the Britisli Association
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Hokitika Guardian, 29 October 1927, Page 4
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369STUDY OF EARTHQUAKES Hokitika Guardian, 29 October 1927, Page 4
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