Parameters

Zone-I

Zone-II

Zone-III

Peak Frequency

>8.0 Hz

4.5 Hz - 8.0 Hz

0.5 Hz - 4.0 Hz

Peak Amplification Factor

>7.5

4.0 - 7.5

1.5 - 4.0

Site Vulnerability Index

>140

80 - 40

10 - 70

Remarks

High Vulnerability

Intermediate Vulnerability

Low Vulnerability