Scientific American Supplement, No. 430, March 29, 1884Various
Science
Scientific American Supplement, No. 430, March 29, 1884
Various
Science -- Periodicals
Vesuvius and Hecla were both active early in the year, and they, with
the ever restless Stromboli, are situated on the great circle which
forms with the land center at Mount Rosa, the radius running S. 30° E.,
and which would embrace the chief disturbances up to the middle of the
year, including as we go north Malta, Sicily, Rome, region of the Po,
Bologna, and in the Western Continent, after passing Hecla, Helena in
Montana Territory, reaching in Washington Territory and Oregon the belt
of it. American volcanoes: Mounts Baker, Rainier, St. Helens, Hood, and
Shasta.
Still another seismic belt, starting from the ever active Fogo, and
passing through Teneriffe (at that time erupted), would include the
regions disturbed in Oct. and Nov., namely, Cadiz, Gibraltar, Malaga
(Murcia and Valencia somewhat earlier); it then traversed the center of
land, caused the earthquakes at Olmutz in Moravia, and even tremors felt
at Irkutsk, as the seismic war moved along said great circle to the
volcanic region of S. Japan.
Again, the belt which covers the meridian of land center (about 8°-10°
E. long) covers also the region of a disturbanced area in Norway, as
well as that portion of Algeria, viz., Bona, in which a mountain 800
meters high, Naiba, is gradually sinking out of sight. About 100 geo.
miles E. of Bona is where Graham's Island appeared in the Mediterranean,
and a few months later disappeared in deep water.
Another highly seismic belt extends from the volcanoes of Bourbon, N.
Madagascar, and Abyssinia to Santoria and the oft disturbed Scios,
Smyrna, and Anatolia region; and along the same great circle were shaken
Patra in Greece on the 14th Nov., and Bosnia on the 15th; while shocks
had been felt at Trieste and Mülhouse about the 11th, and at Styria on
the 7th, and disturbances at Dusseldorf in Sept. Finally, on the 28th
Dec. S. Hungary (near the confluence of the Drave with the Danube) was
visited by seismic movements along this same great circle, which passes
through the extinct volcanic region of the Eifel, the oft shaken Comrie
in Perthshire, Scotland, the volcanic Iceland, our National Park with
its thousands of geysers, the cataclysmic region of Salt Lake and the
Wahsatch Mountains (so graphically described by the geologists of the
U.S. Geol. Survey), giving rise in Sept. to the earthquakes of Los
Angeles and Santa Barbara, and finally reaching the volcanic islands of
the Marquesas group.
Public-domain text, read in full here on John Shaqi.
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