3.19 Techniques for Analysing Earthquake Response
117
Sl. No.
Location and Date
Magnitude
Multiplying Factor
1
El Centro, California
May 18, 1940
6.7
2.7
2
El Centro, California
Dec. 30, 1934
6.5
1.9
3
Olympia, Washington
April 13, 1949
7.1
1.9
4
Taft, California
July 21, 1952
7.7
1.6
Fig. 3.38 Velocity and acceleration spectra
The maximum value of the integrand of Eq. (3.157) remains unchanged if sine
term is replaced by the cosine term.
Therefore,
z max =
S v
p
(3.158)