1.14
Ohno et al. (2001)
1) Reference
Susumu Ohno, Katsuya Takahashi and Masato Motosaka,
2001, Empirical estimation of Horizontal and Vertical Motions based on
California Earthquake Records and its Application to Japan Inland Earthquakes,
Journal of Struct. Construct.
2) Estimated
physical parameter
- Peak ground acceleration (Horizontal, Vertical)
- Peak ground velocity (Horizontal, Vertical)
- Spectral acceleration (h=5%, T=0.2 to 5 sec) (Horizontal, Vertical)
3) Used
strong motion data
- Area:
- Type of earthquake: inland earthquakes with depths up to 20 km
- Period: 1940 – 1994 years
- Number of events: 58
- Number of records: 662
- Magnitude: 4.9 – 7.5
- Equivalent hypocentral distance: 4 – 174 km (closest distance from fault plane: 0.3 – 174 km)
4) Style
of faulting
Not specified
5) Ground
condition
- pre-Quaternary
- Pleistocene
- Holocene
6) Definition
of magnitude
Moment magnitude
7) Definition
of source distance
Equivalent hypocentral distance
8) Definition
of horizontal component
Two horizontal components are treated separately
9) Applicability
written in the paper
The attenuation relationships are appropriate for earthquakes of distances of 0 to 200 km.
10) Empirical
attenuation formula
Table
1.14.1 Regression
coefficients for PGA and PGV
|
|
|
a |
b |
c |
dP |
a |
b |
s |
|
Peak Ground
Acc. |
Hor. |
0.366 |
0.00456 |
1.370 |
0.084 |
-0.214 |
0.548 |
0.229 |
|
Ver. |
1.111 |
0.068 |
0 |
0.075 |
||||
|
Peal Ground Vel. |
Hor. |
0.484 |
0.00336 |
-0.564 |
0.132 |
0 |
0.206 |
0.240 |
|
Ver. |
-0.891 |
0.087 |
0 |
0.097 |
Table
1.14.2 Regression
coefficients for Sa
|
Period (sec) |
a |
b |
c |
dP |
a |
b |
s |
|||
|
Hor. |
Ver. |
Hor. |
Ver. |
Hor. |
Hor. |
Ver. |
||||
|
0.02 |
0.366 |
0.00467 |
1.339 |
1.096 |
0.081 |
0.065 |
-0.204 |
0.554 |
0.073 |
0.231 |
|
0.03 |
0.366 |
0.00493 |
1.372 |
1.161 |
0.075 |
0.061 |
-0.217 |
0.567 |
0.074 |
0.232 |
|
0.04 |
0.356 |
0.00534 |
1.493 |
1.332 |
0.068 |
0.065 |
-0.227 |
0.586 |
0.082 |
0.239 |
|
0.05 |
0.359 |
0.00572 |
1.526 |
1.364 |
0.051 |
0.055 |
-0.245 |
0.617 |
0.075 |
0.244 |
|
0.06 |
0.369 |
0.00614 |
1.534 |
1.340 |
0.045 |
0.069 |
-0.260 |
0.640 |
0.091 |
0.250 |
|
0.07 |
0.369 |
0.00635 |
1.551 |
1.373 |
0.043 |
0.088 |
-0.252 |
0.630 |
0.097 |
0.249 |
|
0.08 |
0.369 |
0.00635 |
1.599 |
1.373 |
0.052 |
0.090 |
-0.250 |
0.647 |
0.099 |
0.249 |
|
0.09 |
0.365 |
0.00605 |
1.624 |
1.413 |
0.066 |
0.090 |
-0.253 |
0.656 |
0.107 |
0.252 |
|
0.10 |
0.369 |
0.00602 |
1.640 |
1.414 |
0.080 |
0.091 |
-0.242 |
0.650 |
0.107 |
0.254 |
|
0.15 |
0.358 |
0.00516 |
1.746 |
1.463 |
0.093 |
0.118 |
-0.272 |
0.741 |
0.113 |
0.253 |
|
0.20 |
0.364 |
0.00411 |
1.698 |
1.358 |
0.108 |
0.119 |
-0.256 |
0.740 |
0.107 |
0.257 |
|
0.30 |
0.380 |
0.00273 |
1.464 |
1.164 |
0.118 |
0.092 |
-0.243 |
0.733 |
0.066 |
0.252 |
|
0.40 |
0.430 |
0.00293 |
1.060 |
0.736 |
0.145 |
0.116 |
-0.220 |
0.714 |
0.098 |
0.268 |
|
0.50 |
0.444 |
0.00273 |
0.882 |
0.567 |
0.175 |
0.110 |
-0.158 |
0.601 |
0.111 |
0.271 |
|
0.60 |
0.448 |
0.00309 |
0.793 |
0.486 |
0.162 |
0.084 |
-0.158 |
0.594 |
0.103 |
0.284 |
|
0.70 |
0.465 |
0.00277 |
0.624 |
0.349 |
0.189 |
0.079 |
-0.098 |
0.475 |
0.102 |
0.294 |
|
0.80 |
0.488 |
0.00296 |
0.438 |
0.163 |
0.180 |
0.064 |
-0.093 |
0.449 |
0.100 |
0.290 |
|
0.90 |
0.497 |
0.00290 |
0.300 |
0.017 |
0.175 |
0.083 |
-0.076 |
0.405 |
0.105 |
0.293 |
|
1.00 |
0.519 |
0.00300 |
0.123 |
-0.169 |
0.172 |
0.086 |
-0.053 |
0.370 |
0.123 |
0.297 |
|
1.50 |
0.556 |
0.00286 |
-0.346 |
-0.605 |
0.209 |
0.124 |
-0.022 |
0.331 |
0.162 |
0.299 |
|
2.00 |
0.587 |
0.00272 |
-0.750 |
-0.960 |
0.209 |
0.124 |
0.000 |
0.280 |
0.122 |
0.289 |
|
3.00 |
0.629 |
0.00207 |
-1.259 |
-1.469 |
0.187 |
0.136 |
0.004 |
0.259 |
0.145 |
0.288 |
|
4.00 |
0.626 |
0.00211 |
-1.404 |
-1.671 |
0.184 |
0.164 |
0.000 |
0.226 |
0.179 |
0.286 |
|
5.00 |
0.633 |
0.00202 |
-1.590 |
-1.824 |
0.180 |
0.126 |
-0.003 |
0.228 |
0.156 |
0.284 |
The values in this table were read from Figures 4, 6, 7, 10 and 12 of Ohno et al. (2001).