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36
Turkey In the hght of this information we divided soil groups for Turkey into three m
ascending order for shear velocity soft soil, soil, and rock The average shear-wave
velocities assigned for these groups are 200, 400 and 700m/s, respectively The
distribution of the records with respect to magnitude and distance plotted by type of
faulting is shown in Figure 3
su
3
S
SJD
5
a
CJ
£ o
o
-3
•5
I
a
o
8 0 -
75 -
70 -
6 5 -
60 •
55 -
| 55 -
1
80
75 -
o
I 70 -
Sea-
S 60-
• * • • • • • •
• *
* • • »
'
50 •
•
ROCK
45 i 1 ~~T~
1 10 100
o n
O U T^
75 -
70 -
65 -
60 -
50 -
4 fi -
* » •• • •
•
- - •
10 100
*•
9
SOIL
I 55 '
I 50-
45 -
40
10
Closest Distance (km)
SOFT SOIL
1QQ
Figure 1 Distribution of records in the database in terms of magnitude, distance and
local geological conditions
Table 2 Earthquakes Used in the Analysis