Complete Story of the San Francisco Earthquake; The Eruption of Mount Vesuvius and Other Volcanic Outbursts and Earthquakes, Including All the Great Disasters of History

Complete Story of the San Francisco Earthquake; The Eruption of Mount Vesuvius and Other Volcanic Outbursts and Earthquakes, Including All the Great Disasters of History

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 edition. Excerpt: ...circumference. "The three severest earthquakes on record in this vicinity are those of Oct. 21, 1868; March 30, 1898, and that of April 18, 1906. The result of observation indicates that our heaviest shocks are in the direction of south-southeast to north-northwest. "In that respect the records of the three heaviest earthquakes agree entirely. But they have several other features in common. "One of these is that while the displacements are very large the vibration period is comparatively slow, amounting to about one second in the last two big earthquakes." THINKS VESUVIUS MAY BE CAUSE. E. W. Maunder, superintendent of the Greenwich observatory, believed that the earthquake in all probability was a direct consequence of the activity of Mount Vesuvius, whose eruption doubtless started a severe wave movement through the crust of the earth. He held, however, that there is no sufficient reason to connect these catastrophes with displays of solar activity, and commented on the comparative rarity of earthquakes in the United States. Dr. Davison, of Birmingham, another seismic expert, obtained valuable records, but could suggest no connection between the Vesuvius and San Francisco disasters. Records in all countries dealing with earthquakes have catalogued a total of 140,000 of the phenomena. Within the last ten years the science of seismography has taken a wonderful advance until there is scarcely a civilized government under the sun which is not setting its instruments for the recording of the time and movement and force of the earthquake--after the quake shall have come and gone. But so far as any possible anticipating of the phenomenon or any possible approximating its force in any manner, the scientist is completely in the dark....show more

Product details

  • Paperback | 88 pages
  • 189 x 246 x 5mm | 172g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236511964
  • 9781236511966