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POPULAR SCIENCE MONTHLY 



Wherever the shock was specially strong there was considerable 

 injury to trees; some were overturned, others broken near the ground, 

 and yet others broken near their tops. A number of large redwood 

 trees standing on the line of the rift were split from the ground up- 

 ward, the basal portions being faulted along with the ground they 

 stood on. 



In the systematic survey of the earthquake area the relative inten- 

 sity is being estimated by means of the records of various physical 



Fig. 9. Street Scene in San Francisco, showing effect of the earthquake on filled ground. 

 The distant p rt of the street probably retains its original level and position. Nearer by the 

 ground has settled several feet and has also moved to the left. 



effects. In the immediate vicinity of the fault road-cracks and cracks 

 in alluvium are large and numerous; many trees were broken or over- 

 turned ; there were many landslides ; half of the wooden buildings of 

 any village or hamlet were shifted horizontally, often with serious in- 

 jury; buildings and chimneys of brick or stone were thrown clown; 



