THE EARTH MOVEMENT ON THE FAULT OF APRIL 18, 1906. 
Table 6.— Elevations of bench-marks before and after the earthquake. 
Locauiry 
Presidio Wharf....... 
Fort Point 
ed 
| Sausalito 
Van Ness and Lom- 
bard Aves. 
POTENT ASOMM..<.c/s,<00 «<< 
Korg Mason... 2...) 
Union Iron Works.... 
19th and Bryant Sts. .. 
Magdalen Asylum, Po- 
trero Ave. 
Appraisers’ Bldg. ...-. 
Potrero Ave. and Divi- 
sion St. 
17th and Carolina Sts. 
Mariposa St. between 
Penn. and Iowa Sts. 
Cal. and Montgomery 
Sts. 
East and Mission Sts. 
Folsom between Main 
and Beale Sts. 






143 




ELEVATIONS 
After Berore EartHquake |NEw-OLp 
CHARACTER OF BENCH- BM Earthquake per: Nerw-Oup 
Mark *“" | Coast and | Coast and G A ; (Ciry) 
Geodetic Geodetic | City Levels ae etic 
ere Survey | 1901-1906 | >UTVeY) 
1906-1907 | 1877-1905 
Meters Meters Meters Mm. Mm 
Zero of tide-gage ....| 11 — 2.5951} — 2.5951 |...--....- OO} erseees.- 
Hinge socket of door| 12 3.8932 3.9002 3.9002) — 7.0} — 7.0 
of brick warehouse. 
Copper bolt in granite | 15 2.7426 PST 9 (8 We a era tee fee Oui restetsme = 
post. 
Copper boltinnatural| 4 6.7585 GIO79 Tienes eects. SY oo hed) Ser eee 
rock. 
Copper bolt in granite | 5 TATOOS Wer At (281 | cee cree = TA 2h Wenrece eres 
post. 
Copper bolt in granite | 6 3.9275 3.8554 3.8895 | + 72.1] + 38.0 
sea-wall. 
Brass plate on con-| 9 60.7745| 60.7151} 60.7232| + 59.4] + 51.3 
crete emplacement. 
Copper bolt inrock ...) 2 1.8909 IO O04 ion ios of BAS Di heibinare coc 
Granite post 22 .2.2.-- 3 AGO Tok DOr ais ee ao. ot sre 0 el Sa ae ye 
Star on iron plate in| 27B|} 29.4047|.......... ZO SII Nom arts is + 8.0 
street. 
Granite post ........- 28 32.5727| 32.5606} 32.5493) + 12.1] + 23.4 
Granite, post. .--..--- 29 31.0876] 31.0854} 31.0649) + 2.2) + 22.7 
Granite post ......... DEO LOL S40 feces ce cee LOWS (ALT 2 eeeeerce + 43.4 
Pendulum pier....... 25 11396621) 114 OF 14 ee cee =i Owls ae 
PADS, DIGk tes no 27 115.3477 | 115.4222)... 2.2... Soy ME ES eee 2 
Brass spike in brick | 50 3.7860 Betofsts: Bete ae Are oA ee, Sea 
bldg. 
Window shutter socket| 47 4.4482 4.4004 4.4299| + 47.8) + 18.3 
Bolt in wall of bldg....| 48 6.2121 GilG95 aes ee ta 2 Ollie aor 
Copper bolt in brick | 58 13.6176} 13.5889] 13.5883} + 28.7} + 29.3 
&- 
Copper bolt in brick | 61 23.3281) 23.3063| 23.2977) + 21.8] + 30.4 
bldg. 
rong ROG. ast eee eee 40B Bylot esac pet eae See ON Re ee — 17.3 
ireray Cranes ssa. > 44] 9 UO areas a= 09098 |i ate — 69.5 
Nail in doorstep ...-- City 6.0235 [one toe cere DD. QOS et cee cee + 26.0 
Bolt im concrete on |. E. | 10-4666\2-...--.. - LOTITO Peeecse + 55.6 
bridge over S.P. 
tracks. 
Water table of Parrott) 41 5.1488 WON hy io} (eeee er ee LS Dike. 
Bldg. 
Iron pillar of brick} 43 2.4828 2IBO23 eee ase S69 Shas oe: 
bldg. 
Granite post set in| 44 5.4835 Dt OL Geer meee said heal Ge ees 
brick wall. 








