The News-Herald. [volume] (Hillsboro, Highland Co., Ohio) 1886-1973, 1905-07-27
OF RARE OCCURRENCE
FEW EARTHQUAKES ARE RE-
CORDED IN PARIS.
Last Seismic Disturbance Ttat Was
Registered There Took Place on
May 81, 1ss9-The Value
of Seismographs.

Paris.--M. Joseph Jaubert, director OF
the municipal observatories Of the Tour
Salnt-Jacques and the Pare Montsouris,
communicates the following:
1t Is recorded that seismic move
ment has been felt at Grenoble and at
various points in the Alps, and that
earthquakes were noticed in different
parts of France, chiefly in the Alps, and
partly in the north.
In Paris these phenomena are fairly
| rare, the last that was registered having
taken place in May 81, 1889. No docu-
ments are to hand giving details Of any
ear hquakes that may have occurred
further back than the fifteenth century,
but since that period the following are
on record:
April g. 1880, one which caused some
damage in the outskirts in the north
west and demolished a portion Of the
church at Pontoise; September ~, 1851,
q very extensive movement signaled In
England and Germany; October 6. I'LL;
January 1S and April 80, 1856; January
20. 1860; May 81. 1921; February 10,
1922; July /, 1S41, especially on the left
bank of the Seine; April l. 1853, at
Sevres; July 1, 1855; September IA. 1866,
mainly in this neighborhood; January
2S, 1878. lasting from eight to ten Sec
onds Tin Paris there were fairly ac-
centuated oscillations. and in the quar-
tier du Marais, at Montmartre and at
Versailles there were light tremors
felU; August 16. 1885: February %, 1887
(this earthquake coincided with that
which caused such serious harm on the
Gulf Of Genoa littoraD; finally, that Of
May 81, 1889. felt in Paris and outskirts.
Earthquakes are registered with the
aid Of instruments called seismographs.
based as rule upon the movement Of q
pendulum produced by the shock, which
movement inscr!bes automatically the
direction, intensity and duration Of the
said shock.
Observation Of the earth's magnetism
shows q correlation between certain
magnetic perturbations and the move
ments Of the earth. The latter are orten
. fairly long way of. as, for instance,
on July 10, 1894. when the magnetic
curves registered at the Pare Saint -Maur
marked q great disturbance at ten min
utes to II o'clock, the local time corre-
spending to "a minutes to II at Con-
stantinople. Now. at the latter town
an earthquake took place at "a minutes
past ten-that is to say. 1t took only 12
minutes for the tremor to pass from
Constantinople to Paris. In other
words. a pace was attained Of 3,10O
meters per second.
The earthquake which took place
some weeks ago in the Rhone valley and
spread as far as Switzerland was regis
tered almost simultaneously by the
magnetic instruments at the Pare Saint
Maur and the Pic du Midi Only i'm
portant stations possess seismographic
instruments, and only, too. in countries
where earthquakes are frequent, such.
for instance, as Japan, where nearly all
the meteorological stations have seis-
mographs. In the Alps. too, earth
quakes are regularly registered.
In places where there are no observa-
tion stations there has been established
kind of graduated scale, which classes
the earthquakes into ten categories. &C.
cording to the damage or accidents
caused