Proceedings of the California Academy of Sciences, Volume III, 1863-1867Various
Science
Proceedings of the California Academy of Sciences, Volume III, 1863-1867
Various
California Academy of Sciences -- Periodicals; Science -- Periodicals
” ” 22 h. 40 m. 38 s.—A very smart shock of earthquake at San
Francisco, consisting of two waves at four seconds apart. The
direction of the motion was north thirteen degrees east. The
displacement was one and a fourth inches, at twenty feet four
inches from the ground. Pendulum suspension eighteen inches.
The earthquake was experienced at San José at the same hour,
and consisted of four strong shocks. At Stockton the earthquake
was severe, and took place twelve minutes later than at this
city. The earthquake was felt at Los Angeles, but was not very
heavy. No time is given from this latter locality.
JULY 25TH, 23 h. 56 m.—A shock of earthquake at Los Angeles.
AUG. 17TH, 22 h. 39 m.—A light shock of earthquake at Nevada
and vicinity.
AUG. 18TH, 5 h. 18 m.—A very strong shock of earthquake was
experienced at Grass Valley and Nevada, which threw down a wall
of stone and brick in the well of Dr. Fellows. This earthquake
was felt at Gibsonville at the north and at Marysville to the
west; at the latter locality it was twelve minutes later than
at Grass Valley.
SEPT. 6TH, 10 h. 3 m.—A shock of earthquake at San Francisco.
SEPT. 20TH, 11 h. 0 m.—A light shock of earthquake at San José;
it was observed at the Mission Dolores.
SEPT. 27TH, 10 h. 32 m.—A heavy shock at Mission San Juan,
Monterey Co.
OCT. 6TH, 21 h. 9 m.—A smart shock of earthquake at San
Francisco.
OCT. 14TH, 1 h. 8 m.—Two heavy shocks of earthquake were felt
at Mission San Juan, and another severe shock at 10 h. 25 m.,
the movement was from west to east.
DEC. 11TH, 20 h. 52 m.—A shock of earthquake at San Francisco.
This shock was felt at San José at 20 h. 51 m., and was
evidently more severe there than at San Francisco.
During 1864, we have had twenty-one days on which earthquakes
have occurred, and of at number there have been two days,
(March 10th and July 21st) in which more than one shock has
taken place within the twenty-four hours of each day.
The _British Colonist_, of Victoria, Vancouver Island,
furnishes the following statement:
Public-domain text, read in full here on John Shaqi.
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