Prof. W. H. Hobbs—The Charleston Earthquake, 1886. 201 
Miles. 
10. Most important displacement. Embankment 15 feet high 
was pushed 43 feet eastward and kink produced in track. 
104. Wing wall of culvert broken. Embankment depressed. 
112. Much vertical movement. ‘Trestle damaged. 
12. Another great disturbance. Fish-plates broken and joints 
opened. Cracks running N. 40° E. crossed track, 
‘“ developing into a series or network of cracks throughout 
a belt 150 feet wide and 700 feet long.” 
12%. Culvert collapsed. 
1334. Brick club house destroyed. 
153. Goose Creek. South end of trestle deflected eastward, and 
north end to westward. 
Charleston and Savannah Railway. 
The tracks of this road are those used by the North-Western for 
some miles out from the Charleston station. From the point of 
departure no serious damage to the track was found to the east of the 
Ashley River. 
Miles. 
. 112. Ashley River. River banks had been brought nearer together. 
Drawbridge jammed. West of river the joints of rails 
were opened. 
162. Rantowle’s Bridge. Drawbridge shifted. Banks brought 
nearer together. 
18. Rantowle’s Station. Track sharply kinked into double 
fracture. Embankment depressed two feet. 
39- Embankment showed a depression of one foot. 
zs. A maximum of lateral displacement. 
;. Here serious flexures which stopped abruptly. 
;. Jtoadbed depressed six inches. 
>. 300 feet of track depressed 13 feet. 
Sinuous flexures in track. 
Upon the map printed with Dutton’s report to show the arrangement 
of craterlets within the ‘epicentral track,’ we have carefully plotted 
the data contained in the above lists (see Map, p. 199). Before these 
data had been plotted, however, lines had been drawn to join the 
areas of craterlets, and these lines extended. As soon now as the loci 
of special damage to the tracks had been plotted, it was seen that 
these points lie where the narrow zones of craterlets extended and 
intersect the railway tracks. In consideration of the exactness with 
which these correspondences occurred, there seems to be no reason to 
doubt (1) that the lines of craterlets extended are the projections 
upon the surface of the ground of the fracture planes within the rocky 
basement upon which differential movement occurred at the time of 
the earthquake ; (2) that the areas of ‘craterlets shown upon the map 
correspond in the main to projections of the intersections of such 
earthquake-faults ; and (8) that the faults are arranged in essentially 
parallel series, of which two senes are more conspicuous than the 
others. Their prevailing directions are about N. 65° E. and N. 10° W. 
The data compiled in the report are susceptible of more elaborate 
analysis than has here been attempted, since we have sought only the 
