Bulletin of the Seismological Society of America; February 2006; v. 96; no. 1;
p. 237-257; DOI: 10.1785/0120050052
© Seismological Society of America
Click on image to view larger version.
Figure 3. Graphical interpretation of
Table 1—peak rooftop
acceleration (accn) amplitude versus frequency, log scaling. For both
east–west and north–south, the best-fitting least-squares solution
for all the data is plotted in dashed lines. Outlying data from tests and
earthquakes prior to main permanent natural frequency shift (pre-Whittier
Narrows for north–south; pre-San Fernando for east–west) are removed
from dataset for the solid-line regressions, with labeled functional form.
