 | 1860 - 620 Seiten
...profound, the shock will be felt more or less vertically, and in this case two distinct waves may be felt, the first due to the originating normal wave, the...transversal waves vibrating at right angles to it. The earth-wave, as observed in Europe, is supposed to travel from W. 2° 39' N. to E. 2° 39' S. The... | |
 | John Frederick William Herschel - 1851 - 572 Seiten
...able to notice two distinct waves, a greater and a less, following each other almost instantaneously ; the first due to the originating normal wave, the second to the transversal wave vibrating at right angles to it. If we can find the point of the surface vertically over the origin,... | |
 | John Frederick William Herschel, Robert Main - 1859 - 496 Seiten
...above the centre of impulse. If this be at a small depth below the surface, the shock will be jglt principally horizontally ; but if the origin be profound,...a distant point, or the angles of emergence at two distent points, neither of which is vertically over the origin — ie in one coseismal line — we... | |
 | Smithsonian Institution. Board of Regents - 1860 - 460 Seiten
...case also we may be able to notice two distinct waves, a greater and a less, following each other v^sy rapidly: the first due to the originating normal wave;...neither of which is vertically over the origin—{. e., in one coseismal line—we can find the depth of the origin from the surface by methods pointed... | |
 | John Holmes Agnew, Walter Hilliard Bidwell - 1860 - 624 Seiten
...profound, the shock will be felt more or less vertically, and in this case two distinct waves may be felt, the first due to the originating normal wave, the...transversal waves vibrating at right angles to it. The earth-wave, as observed in Europe, is supposed to travel from W. 2° 39' N. to E. 2° 39' S. The... | |
 | William Henry Rosser - 1862 - 322 Seiten
...able to notice two distinct waves, a greater and a less, following each other almost instantaneously ; the first due to the originating normal wave, the second to the wave vibrating at right angles to it. If we can find the point of the surface vertically over the origin,... | |
 | 1860 - 856 Seiten
...profound, the shock will be fell more or less vertically, nnd in this case two distinct waves may be felt, the first due to the originating normal wave, the...transversal waves vibrating at right angles to it. The earth-wave as observed in Europe, is supposed to travel from W. 2° 39* N. to E, 2° 39' S. The... | |
 | Smithsonian Institution. Board of Regents - 1860 - 460 Seiten
...above the centre of impulse. If this be at a small depth below the surface, the shock will be felt principally horizontally; but if the origin be profound,...distant points, neither of which is vertically over the origin—ie, in one' coseismal line—we can find the depth of the origin from the surface by methods... | |
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... rapidly: the first due to the originating normal wave; the second to the transversal waves vibrating at right angles to it. If we can find the point of the surface vertically over the origin, and the direction of emergence of the shock at a distant... 