Application of Spatially Smoothing Seismic-activity Model on Seismic Hazard Estimation in East China Offshore Areas
Lifan Zhang · Journal of Seismological Research · 2013
Choosing the East China offshore areas as the study area(25°~41° N,117°~126° E),we divided the seismotectonic unit based on the regional seismotectonic setting and earthquake activity level etc.,and calculated the earthquake occurrence rate of each grid point by using seismic activity parameter evaluation method of circular-Gaussian smoothing model based on the input earthquake catalog and fault-rupture-oriented elliptical smoothing model.On the basis on the grid source,we obtained the division maps of ground acceleration peak with exceedance probability of 10% in 50 years by seismic hazard probability evaluation method.