Publications of the Earthquake Investigation Committee in Foreign Languages, Issues 11-15 (Google eBook)
The Committee, 1902 - Earthquakes
No. 15 includes, at end of vol.: "Publications of the Earthquake Investigation Committee in foreign languages, nos. 1-16" and "Translation of the 000000000 contents of the Shinsai yobō chōsakwai hōkoku (Reports of the Imperial Earthquake Investigation Committee) nos. 1-47", 15 p.
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1st phase 2nd phase 2nd preliminary tremors 3rd phase amplitude area of disturbance average period axis bridge carriage Central Meteorological Observatory centre of symmetry chimney component corresponding curve displacement distance distant earthquakes Duration earthquake motion Earthquake of Oct earthquake origin earthquakes observed earthquakes of Groups elastic yielding end portion Eqke experiments following table given Hitotsubashi Hokkaido Hongo Hooke's law horizontal pendulum hysteresis Kozn Kuwana KYOKUYO-SHA lateral vibration maximum motion mean value miles per hour Mino-Owari earthquake modulus of rigidity motion consisted Nagoya nearly occurred Omori overturned period of vibration pier Plate girders prel principal portion propagation Quick waves Railway range of motion ratio respectively seismic waves seismograph Sept Slight slow undulations Slow waves specimen station superposed tion Tokyo Imperial University train transit velocity twisting couple vertical motion Vertical vibration VIII Warren girder шл
Page 3 - The earlicr part of the principal portions is further subdivided into three successive stages as follows: (a) the first phase,, consisting of a few very slow movements; (b) the second phase, consisting of slow movements, whose period is generally somewhat shorter than in the first phase; (c) the third...
Page 2 - ... large extent, be regarded as epitomised reproductions of papers previously published by the Tokio Earthquake Investigation Committee, which we have already noticed (NATURE, April 30, July 9, 1903). _In a note on the seismograms of distant earthquakes, Dr. Omori tells us that the " motion consists of a series of different epochs, in each of which the period remains essentially constant, while the amplitude, on tlie whole, is also constant, except for the occurrence of maximum and minimum groups.
Page 121 - W, waves is possible only in a very small number of cases : that of the W2 waves is, however, more definite, being usually characterized by the fact that their period is much slower than those of the preceding vibrations which form the end portion of the W, waves.
Page 90 - Note on the After-shocks of the Hokkaido Earthquake of March 22nd 1894. (With 2 pis.) By F.
Page 122 - W8 waves are the same waves as those which constitute the 5th section of the earthquake proper. That this is probably the case may easily be understood, as the vibrations in the 5th section have large amplitude, while their period is tolerably slow, but not so very long as that of the waves in the 3rd and the 4th sections. The time interval between the arrival of the W, and that of the Ws waves is 3b 20m 46...
Page 121 - Ws waves is also probably nearly the same as that of the W, waves. These facts seem to indicate that the W, and W, waves are the same as those which constitute the third phase of the principal portion of the earthquake proper.
Page 238 - The velocity of transit of the Caracas earthquake of Oct. 29, 1900, deduced from the observations in Tokyo and Central Europe. Tokyo Sugaku ButJsurigu];u Rtmi Kiji Gaiyó, 1903, 19, 2ig — 220.
Page 85 - By way of reference, we may note that the low atmospheric pressure always produces pulsatory oscillations of some intensity, which shows that the earth's crust, or rather a given district such as the plain of Musashi, is very easily thrown into movements.
Page 161 - ... of percussion with respect to the base. In other cases, however, the body is to be supposed as being acted on by a force equivalent to the product of its own mass jind the maximum acceleration of the earthquake motion applied at its cantre of gravity.