ISOSEISMALS: DISTRIBUTION OF APPARENT INTENSITY. 295 
10 feet at Gonzales bridge and ending about 2.5 miles south of it. Along the Pajaro 
and San Lorenzo Rivers the movement was a settling of the alluvial bottom-lands. 
(A. S. Eakle.) — The effect of the earthquake upon the alluvium was well shown along 
the banks of the stream from the Salinas to the Gonzales bridges. Along the east side 
of the river for a short distance south of the Salinas bridge, 4 miles south of the town, 
the land is cracked at the edge of the bank, the cracks paralleling the course of the river; 
but comparatively little cracking was observed on this side of the river. Along the 
bank and down in the river-bottom itself, on the western side of the stream, fissures 
were very prominent. The county road southward from the Salinas bridge runs along 
the embankment’ about 10 to 20 feet above the stream bed. The road is an oiled one, 
and the oil had formed a hardpan upon the underlying sand. In the vicinity of the 
bridge the road has been shattered by the quake for a distance of 200 yards. The breaks 
are in the nature of a caving in of the road on the north side of the crack, as if hollow 
spaces existed beneath, leaving a vertical escarpment on the south side. The main 
sinking is at the most southerly fissure. Here the road has sunk bodily to a depth of 
10 feet, leaving a high vertical bank diagonally across the road, and this sunken area 
extends for some distance into the adjoining field on the west. There is no upheaval 
of the road in any place to compensate for the sinking. 
South of the Spreckels factory, the low bottom-land between the banks of the river 
is considerably cracked, although there is no prominent vertical dropping of the land 
along the cracks. ‘This low land lies west of the present course of the stream, and is 
intersected by sloughs and former water courses. All of the ground is of a deep sandy 
nature, consequently it was much disturbed and fissured by the quake, and the fissures 
became filled with water and sand, forming a quicksand, this wet sand frequently being 
spouted into the air. No one noticed gases coming up. The position of the cracks is 
now marked by patches of light, bluish-gray sand in the field, from the drying out of the 
quicksands. Houses on this low land were thrown out of plumb, and chimneys were 
destroyed. The cracks diminish in number as one goes southward, and practically 
end in the vicinity of the Gonzales bridge. The quake at Gonzales can hardly be placed 
at more than VII in the scale, as comparatively little damage was done to the town. 
Effect upon structures, objects, etc. (G. A. Waring). —It is remarkable how closely 
the disturbance followed the river channel throughout the Salinas Valley; 2 or 3 
miles away from the stream on both sides the intensity was very slight. Southward 
up the valley the shock gradually lessened, and rapidly died out in the foot-hills on 
either side. 
In the hills between San Juan and Natividad the ground is not cracked, except for 
a few places on hillsides where there was some sloughing off. The shock was sufficient 
to throw nearly all the milk from the pans, but not strong enough to move furniture or 
shelf goods. At Natividad, in the foot-hills, the shock was of about the same intensity. 
At Santa Rita the shock was light; a little milk was spilt from pans, but several tall 
slender chimneys were unhurt. 
Prunedale (H. H. McIntyre). — Nearly every chimney was thrown down. All the 
goods in the store were thrown to the floor. The house was badly wrecked. Water 
started flowing in many places where there had been none, or but little, before. T here 
were 2 small landslides from springy places, the direction of the slip being from north 
to south. 
Salinas (G. A. Waring). — At Salinas 423 per cent (278 out of 655) of the chimneys fell. 
A brick store was demolished by the collapse of the roof (plates 115s, 1168), and parts 
of a dozen or more brick walls fell. (Plate 116c.) Shelf goods were shaken down, and 
a few heavy articles, such as slot machines, were overturned. Heavy furniture, such 
as pianos and billiard tables, was not moved. But little plate glass was broken. In 
