Challenges for the Next Generation of Seismic Codes - Earthquake Engineering for Structural Design - page 473

Table 10.1 Main characteristics of earthquakes

Earthquake

Magnitude
M

Near-
ource
effects

Pulse type Number

of pulses

Period
of
pulses

Spect
rum
type
(Fig.
10.1)

Soil
condition
effects

Duration

Interplate

subduction

very strong great velocity very

reduced

long T1 moderate moderate

strike-slip

strong very great velocity reduced very

long

T1 great long

Intraplate

convergence

strong great velocity very

reduced

long T1 moderate modest

crust fractures

low to
moderate

moderate velocity very

reduced

short T2 great short

Interslab

strong no acceleration large long T1 very great very long