No CrossRef data available.
Article contents
XVII.—The Ochil Earthquakes of the Years 1900–1914
Published online by Cambridge University Press: 15 September 2014
Extract
The earthquakes of Scotland, as compared with those of England and Wales, are notable on several accounts:—(i) They are more numerous. During the twenty-six years from 1889 to 1914, 357 earthquakes riginated within the area of Great Britain–51 in England, 27 in Wales, and 279 in Scotland. If area be taken into account, the inequality is still greater. For every shock occurring in England, there were during this period four in Wales and nine in Scotland, (ii) They are invariably simple earthquakes, twin earthquakes (which include the strongest of all British earthquakes) being confined to England and Wales, (iii) As simple earthquakes, they are due to movements along strike-faults, and, for the most part, along well-known faults, the majority of which belong to the Caledonian system, the only exceptions known to me being those connected with the Loch Broom earthquake of 1892 and the two Glasgow earthquakes of 1910.
- Type
- Proceedings
- Information
- Copyright
- Copyright © Royal Society of Edinburgh 1917
References
page 257 note * The expenses of the investigations were defrayed from a grant received from the Government Research Fund.
page 257 note † Geographical Journal, vol. xlvi, 1915, pp. 360–361.
page 257 note ‡ The descriptions of the earthquakes numbered 1–42 are abridged from a paper in the Quart. Journ. Geol Soc., vol. lxiii, 1907, pp. 362–374; those of the earthquakes numbered 43–82 from papers in the Geological Magazine, vol. v, 1908, pp. 296–309, and vol. vii, 1910, pp. 315–320.
page 283 note * If any number (n) of earthquakes were to occur at random, Dr Schuster has shown that the amplitude should exceed √(π/n), which in the present case is ·13 (Roy. Soc. Proc., vol. lxi, 1897, pp. 455–465). Though the above figures for the amplitude are about three times this amount, it seems to me doubtful whether the results obtained above are of much value, owing to the marked occurrence of the earthquakes in a limited number of series.