Earthquakes in the Light of the New Seismology |
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Page 2
... indicate a certain consistency with it . For size is rela- tive and the depth of the centrum is not fixed . A tract of three or four hundred square miles is but a small spot in one of tens of thousands of square miles , and , being ...
... indicate a certain consistency with it . For size is rela- tive and the depth of the centrum is not fixed . A tract of three or four hundred square miles is but a small spot in one of tens of thousands of square miles , and , being ...
Page 17
... indicate the fanciful childhood of the science which endeavours to deal with problems of earth physics . It will be more profitable to limit ourselves to those explanations which , though they may be more or less erroneous , are neither ...
... indicate the fanciful childhood of the science which endeavours to deal with problems of earth physics . It will be more profitable to limit ourselves to those explanations which , though they may be more or less erroneous , are neither ...
Page 24
... indicate that volcanic energy was seldom concerned in generating them . Similar studies , though less systematic and ... indicated a small one , but that it is much smaller in the great and powerful class than in the moderate and feeble ...
... indicate that volcanic energy was seldom concerned in generating them . Similar studies , though less systematic and ... indicated a small one , but that it is much smaller in the great and powerful class than in the moderate and feeble ...
Page 32
... indicate that the earth - mass has obeyed these stresses which in the last analysis are simply the consequences of terrestrial gravitation conserving the altitudes of the denuded lands and of the overloaded lit- torals or sea basins ...
... indicate that the earth - mass has obeyed these stresses which in the last analysis are simply the consequences of terrestrial gravitation conserving the altitudes of the denuded lands and of the overloaded lit- torals or sea basins ...
Page 43
... indicate regions which present both volcanos and earth- quakes there is no proof of interpendence between seismicity and vulcanicity in general . While there are earthquakes which are certainly of volcanic origin , the one phenomenon ...
... indicate regions which present both volcanos and earth- quakes there is no proof of interpendence between seismicity and vulcanicity in general . While there are earthquakes which are certainly of volcanic origin , the one phenomenon ...
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Common terms and phrases
acceleration after-shocks alluvia amplitude Arica axis cause centre centrum CHAPITRE Charleston earthquake Charleston Quake coast cracks curves degree density depth dislocation displacement distance district disturbance downthrow earth earth-mass earthquakes elastic energy epicentre epicentrum epifocal eruption estimates fact felt force frequency greater ground Hooke's law Horizontal Pendulum hundred increases indicate inferred instruments intensity investigation Japan kilometres kilometres per second Krakatoa less lever mass means measure miles Milne's minutes Montessus movement normal wave number of quakes observed occur ocean Omori origin oscillation particle period phase portion preliminary tremor Professor Milne proportional ratio records ribbon Robert Mallet rocks Rossi-Forel scale sea-waves seaquakes Seismes seismic seismic regions seismograph Seismological seismometer shaken shock speed of propagation square square kilometres steady-point surface syzygies tectonic tilting tion Tokio Totaux trace transverse wave velocity vertical motion Vertical Pendulum vibrations Vicentini volcanic volcanic action
Popular passages
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Page 167 - Overthrow of movable objects; fall of plaster; ringing of church bells; general panic, without damage to buildings.
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Page 167 - Microseismic shock: recorded by a single seismograph or by seismographs of the same model, but not by several seismographs of different kinds ; the shock felt by an experienced observer.