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125W
120W
130W
0
100
200
(km)
1700 Cascadia
event (
M
w
= 9.0)
50N
6.5
≤
M
w
<
7.5
5.5
≤
M
w
<
6.5
4.5
≤
M
w
<
5.5
(a)
120W
130W
122W
128W
126W
124W
52N
Regional model
CST
SBC
EXP
CASR
BRO
50N
NOFR
OFS
JDFN
48N
JDFF
GSP
0
100
20
(km)
Cascadia
(b)
1.2
(a) Seismic activities in western Canada, and (b) delineated
regional seismic source zones that were adopted in the national
seismic hazard model (BRO: Brooks Peninsula; CASR: Cascade
Mountains; CST: Coastal; EXP: Explorer Plate Bending; GSP: Georgia
Strait/Puget Sound; JDFF: Juan de Fuca Plate Bending Offshore; JDFN:
Juan de Fuca Plate Bending Onshore; NOFR: Nootka Fault; OFS:
Offshore; SBC: Southeast Canada Background) (Adams and Halchuk,
2003).
width
W
, strike
for a given earthquake magnitude, earthquake
type, and depth (see Fig. 1.3b for a typical fi nite-fault plane model). Appro-
priate model parameters can be generated using Monte Carlo simulation
(Scherbaum
et al.
, 2004).
Once a synthetic earthquake catalogue has been generated, ground
motion parameters can be evaluated for each seismic event contained in
the catalogue. An illustration of a sample synthetic earthquake catalogue
and evaluation of a GMPE for a given scenario is shown in Fig. 1.4. In this
ϕ
, and dip
δ
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