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REPORT OF THE CALIFORNIA EARTHQUAKE COMMISSION. 











SUBSIDENCE IN FEET. 
Street. From — To— April, 1901, to April, 1902. April, 1902, to April, 1903. 
Max. Mean. Max. Mean. 
1h Davis... a \eMarkete a | Liset i ee .O7 05 -08 
2. Jackson ..{| Montgomery} East.... .07 038 06 
3.,Spear. ... | Market... | Bryant ., 10 .06 .05 
4. Mission «5. - ]ukltStie, sesce eeu) ASG) sees lp 07 .05 .02 
5. Harrison (a) | Fourth ... | Seventh. . 17 15 .22 19 
6. Sixth ....] Howard .. | Channel. . .10 05 Ws .08* 
.O5§ 
4 
(a) Location of maximum subsidence on Harrison Street between Fourth and Seventh is the same 
for both years. 
* Mean subsidence from Brannan southerly. § Mean subsidence from Brannan to Howard. 
1. No appreciable subsidence (Apr. 1902—Apr. 1903) except at Vallejo Street, where 
maximum occurs. 
2. No appreciable subsidence (Apr. 1902—Apr. 1903) except at Drumm and East 
Streets, where maximum occurs. 
3. No appreciable subsidence (Apr. 1902—Apr. 1903) except at Mission Street, where 
maximum occurs. 
4. Subsidence (Apr. 1902—Apr. 1903) occurs from Main easterly; maximum at East 
Street. 
5. Subsidence (Apr. 1902-Apr. 1903) occurs from a point between Fourth and Fifth 
Streets, as far west as Sixth Street. 
6. Maximum (Apr. 1902—Apr. 1903) at Folsom Street. 
Possible premonitory movements (Miss H. C. Lillis). — Mr. McConnell, a jeweler, located 
on Post Street between Montgomery and Kearney Streets, states that 4 days before the 
earthquake he found one of his windows broken in nearly 50 pieces tho none of the 
pieces had fallen out; and supposing that some one had tried to enter his shop, he sent 
for a detective. Captain Calunden came, and on looking over the premises declared that 
it was not the work of a burglar but was due to the settling of the building. He found 
the building out of plumb. This would indicate a settling of the ground before the 
shock. One of his workmen who lived in the Mission found his cellar door closed so 
that difficulty was experienced in opening it. This occurred the same day as that on 
which the glass was broken. 
Effect of the shock near the beach (W. D. Valentine). — We were residing on Forty- 
eighth Avenue, between K and L Streets, within a few hundred feet of the ocean, about 
0.5 mile south of the park. In our section the shock was violent. It awakened me 
instantly, and for a few seconds I was unable to rise, as I was thrown back in the effort. 
Meanwhile I was carefully watching the movements of an extremely tall and heavy 
oaken wardrobe which stood almost in the middle of the floor. The top first swung 
to the west, then to the north, then to the east, and fell directly to the south with such 
force that it went to pieces. Our heavy upright piano and various heavy articles of 
furniture were thrown completely over. The sand in our basement raised from 1 foot 
to 18 inches. A wide and long 3-foot depression was raised level. Our lot, which was 
120 feet deep, was shortened at least a foot, which was shown by the folding of the fence. 
Electric-light poles in the street in front of us, which were in the sand, were thrown 
down north, east, south, and west. There was a fissure for about a block, between 
Forty-seventh and Forty-eighth Avenues, about 3 feet wide and 6 or 8 inches deep, 
