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The Chi-Chi Earthquake occurred on the Chelungpu fault on September 21, 1999; the moment magnitude of the main shock was 7.6. The ground motions generated by the earthquake were recorded by 387 strong motion stations in Taiwan. Details about the recordings of the main shock can be found in Lee et al. (1999). Digital data about all the station records can be found through this link: http://www-scf.usc.edu/~asghari/ChiChi.htm. Ten strong motion stations that might be considered for liquefaction analysis in the study areas, are shown in Figure 11. The basic data of the ten stations are listed in Table 1.
Figure 11. Ten strong motion stations related to the present study
Station |
Coordinates |
Epicenter distance (km) |
Peak Ground Acceleration PGA (gal) |
|||
Longitude (N) |
Latitude (E) |
Vertical |
N-S |
E-W |
||
TCU065 |
120o41.46' |
24o03.54' |
25.57 |
257.80 |
563.22 |
774.42 |
TCU076 |
120o40.54' |
23o54.47' |
15.25 |
275.38 |
420.02 |
340.10 |
TCU110 |
120o34.19' |
23o57.70' |
27.50 |
116.28 |
187.52 |
178.24 |
TCU112 |
120o25.41' |
24o03.36' |
45.50 |
65.26 |
68.00 |
78.30 |
TCU117 |
120o27.62' |
24o07.98' |
47.22 |
89.96 |
113.46 |
121.30 |
TCU120 |
120o36.78' |
23o58.80' |
24.62 |
166.52 |
193.50 |
222.98 |
TCU123 |
120o32.56' |
24o01.06' |
32.89 |
85.54 |
131.96 |
149.00 |
TCU129 |
120o41.06 |
23o52.70' |
13.54 |
334.96 |
610.76 |
983.00 |
TCU138 |
120o35.07' |
23o55.34' |
55.34 |
110.36 |
207.40 |
202.24 |
CHY104 |
120o27.94' |
23o40.19' |
41.33 |
129.68 |
177.12 |
142.90 |
Table 1. Peak Ground Accelerations recorded by the ten stations related to this study
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