ISOSEISMALS: DISTRIBUTION OF APPARENT INTENSITY. 215 
the ordinary manifestation of earthquake violence. The people at the base of the moun- 
tain were incredulous as to the existence of the crevice and especially as to its creation at 
the time of the earthquake. 
As an outcome of this trip, Mr. Gilbert contributes the following note on the intensity 
of the earthquake shock at various points in the territory visited. 
At Williams (population 500) the shock was strong enough to awaken people but not to 
throw down chimneys. It is said that small cracks were made in the walls of the hotel, a 
brick building. The intensity was about the same at Maxwell, population 300; Leesville; 
and Stony Ford, population 100. At Fouts Springs, 10 miles west of Stony Ford, only a 
few persons recognized the jar as due to an earthquake, and its identification was ques- 
tioned by others until the news of the San Francisco disaster reached the place. As Stony 
Ford and Fouts Springs are near the east and south bases of St. John’s Mountain, it is 
probable that the mountain was not severely shaken. 
Elk Creek, Glenn County. Population 200. (P. E. Friday.) — The shock was very 
light. Some people heard windows rattle and noticed open doors swing slightly. 
Colusa. Population 1,441. (Mrs. 8. L. Drake.) — There was nothing overthrown, but 
water slopt from the tanks of the water-works on the north and south sides. The 
shock was so slight that only a few persons noticed anything more than a shaking, as 
tho some one had hold of the bedstead. ; 
(EK. S. Larsen.) — Many sleepers in Colusa were awakened, and some clocks were stopt, 
but there was no damage to chimneys and no glassware was broken. Window-frames 
in stores were in some instances displaced so as to leave a crack. Few cracks in plaster 
are reported. There is a general agreement that the vibrations were strong but slow 
and swinging. ‘There is a fair agreement on the east and west direction for the vibrations. 
The jeweler had three pendulum clocks on the wall facing north. None of them stopt. 
(Fred Roche.) —The shock in the central part of Colusa County lasted over a minute. 
There was only one continuous disturbance, but its intensity was strongest in the middle 
part. It caused windows to rattle, the bed to move, and hanging objects to swing, and 
overthrew some ornaments, but did not affect chimneys. 
Meridian, Sutter County. Population 500. (T. F. Taylor.) — Two shocks were felt, 
the second being the stronger. No objects were overthrown. 
Marysville, Yuba County. Population 3,497. (R. F. Watson.) —J was indoors, 
standing on the floor and stooping over when I felt quite a distinct tremulous motion for 
about 10 seconds before the main shock, causing a dizzy feeling. The shock itself started 
rather heavy and was jerky; it then became lghter until the second part of the shock 
came, with a rocking motion. The movement of the floor tipt me toward the southeast. 
No noise was heard. Windows and chairs rattled; electric-light bulbs suspended by cords 
first vibrated like a pendulum and then described a circle; and the pendulum clock stopt.. 
(A. B. Martin.) —The shock was sufficiently intense to arouse people from Sleep, but no 
chimneys were broken nor was property injured. 
Yuba City, Sutter County. Population 600.— The earthquake was generally felt; 
some sleepers were awakened and some clocks stopt. Movable objects were shaken. 
Water in horse-troughs was thrown several feet in an east and west direction in two cases, 
the troughs being oriented north-south and east-west respectively. 
Black’s Station, Yolo County. Population 300. (8. P. Cutter.) — No objects were over- 
thrown, but hanging objects were caused to swing in a circle. There were 2 maxima, of 
which the first was the stronger; and a vertical movement was felt. 
Knight’s Landing, Yolo County. Population 500. (L. T. Shamp.) — While no large 
objects were overturned, small ornaments were thrown in all directions, and the shock 
was violent enough to stop several clocks. There was more than one maximum, tho the’ 
first was the strongest. The water in the Sacramento River rose to a height of 3 to 4 
feet in long sweeping swells. 
