110 REPORT OF THE CALIFORNIA EARTHQUAKE COMMISSION. 
cracks alternating with a few long, continuous fissures, mark the course from Patchin to 
Wright Station. Thru the Morrell ranch it is especially evident. (See plate 64B.) 
At Wright Station the movement is well shown in the railway tunnel. (Fig. 42.) This 
tunnel runs southwest, and about 400 feet in from the eastern end of it there is a nearly 
vertical slicken-sided plane, showing a shear movement of 5 feet. Apparently the south- 
west side moved northwestward. Between Wright and Alma, the railway track was 
badly bent in places (see plate 1074), but the ground did not crack noticeably. It seems 
to have been subjected to compression, for 7 inches had to be cut from the rails when 
the track was repaired. A large landslide also occurred close to Wright Station, partly 
damming up the stream. The fault past a little west of Wright, tearing up the public 
road at several places (plate 654), especially at the blacksmith shop, near Burrell School- 
house. Sulfurous fumes are said to have risen from this crack for several hours. From 
this place the cracks run up over the ridge just west of Skyland. Large fissures show in 
the orchards and fields on the eastern side of the ridge, but are not so evident on the 
western slope. Here, instead, great landslides occurred, and redwoods were snapt off 
or uprooted. Thru the timbered region from Skyland to Aptos Creek, the course of the 
fault-trace is marked almost its entire length by a swath of felled trees, true fault fissures 
being found at only two places. On the northern side of Bridge Creek Canyon there 
are typical cracks from 1 to 8 inches wide, and here also occurred a great landslide which 
buried the Loma Prieta Mill. The second place where fault fractures are found is on 
the ridge between Bridge and Aptos Creeks, where there are well-defined fissures up to 
18 inches in width, trending 8. 3° E., with a downthrow of the western (upper) side of 
from 2 to 6 feet, and a relative movement of the east side a few inches toward the south. 
The cracked zone is about 50 feet wide. Great slides on both sides of Aptos Creek have 
almost made a valley of the canyon for fully 0.75 mile. Following across the ridges and 
canyons, the discontinuous line of slides and sinks in upland marshy places marks the 
course of the fault-line down into the lowland. 
The road at Corralitos is said to have been slightly cracked, and in the low hills between 
Valencia and Corralitos a few cracks were found; but the fault evidently runs fully 0.5 
mile east of Corralitos. The mountain roads east and northeast of Corralitos were 
rendered impassable by landslides and by the bridges being injured. Crossing the road 
near Hazel Dell Creek is a band of small cracks 35 yards wide, trending 8. 3° E. The 
fence on either side is not displaced, but the posts lean 30° to the southwest. About 0.25 
mile farther northeast the stake fence on the northwestern side of the road is moved 10 
inches out of line, and the ground just beyond has sunk a few inches. The fissures appear 
to die out in the marshy land west of Wm. McGrath’s house, and they begin again a mile 
eastward, halfway up the slope. Thru this upland meadow region is a series of slides and 
sinks gradually rising in elevation. At a small ravine, fissures again appear and follow 
up it (S. 33° E.) for 0.25 mile, mainly as a great furrow from 2 to 6 feet wide. Three 
ponds near the divide lie directly in its path, but the cracks are only a few inches wide 
here. ‘Thru the grain fields beyond they are not very evident until at the divide between 
the steep slope to the Pajaro River and the gentle westward drainage. Several cracks a 
foot or less in width show on the ridge, but the fault seems to set off about 100 yards to 
the northeast and to consist of east and west cracks, having loosened the whole slope for 
nearly a mile northward of Chittenden, causing great landslides. The fault-line crosses 
the Pajaro River at the railway bridge at Chittenden. The movement is shown by the 
disturbance of the concrete bridge piers. (See plates 17a, 65n, and fig. 43.) Thence 
straight across the low hills and fields on the opposite side of the river a line of cracks 
extends, passing 0.5 mile west of Mr. Canfield’s house, “‘just where the earth cracked 
16 years ago.” ‘This crack crosses the Sargent-San Jose road a mile north of San Juan, 
