- Ground-motion model is:
where Y is in g, c1 = -5.36874, C2 = 1.72882, C3 = 2.06573, C4 = 0.11318, C5 = 0.80312 and σ = 0.6619.
- Only use data from rock sites (V s,30 > 760m∕s).
- Use data from networks of Central Weather Bureau betwen 1991 and 2008.
- Use data from earthquakes with ML > 5.5 and depth < 35km. Includes data from 1999 Chi-Chi mainshock
and 5 aftershocks. Select all data from Real-Time Digital (RTD) network and all data with rhypo < 50km
from stations of Taiwan Strong-Motion Instrumental Program because of lack of near-source data from
RTD network and distribution w.r.t. rhypo.
- Compare predictions and observations for 1999 Chi-Chi earthquake and find good match. Also compute
the standard deviation of the residuals from this event.