1907 I 



CRANDALL— SAN FRANCISCO PENINSULA. 



51 



cemeteries, 011 the north side of Russian Hill, in the district south 

 of Market and in Mission valley near Eighteenth street, the inten- 

 sity seems to have been greater than in other places through the 

 city. Houses were completely demolished, car tracks twisted and 

 broken, and water pipes bent. 



Relations to Soil and Rocks. — In the first two districts men- 

 tioned the damage is due to the settling and sliding of sand on 

 the hillsides. This is best shown near Steiner and Union streets, 

 where crescent-shaped cracks appear in the street. In one place a 

 house set on the hillside moved forward, down hill onto the sidewalk. 



Fig. 21. 



Union street near Steiner, showing the effect of a landsHde caused 

 by the earthquake. 



In the other areas the buildings damaged stood mainly upon 

 filled ground or recently formed loosely set soil. On Valencia 

 street, where the greatest damage was done, a hotel that sank into 

 the ground was upon material that had filled an old creek channel. 

 The area directly around was also intensely disturbed, due, perhaps. 



