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It is well known that earthquakes are a regional event, strongly controlled by local geological structures and circumstances. Reducing the research area can reduce the influence of other irrelevant seismotectonics. A new sub region- dividing scheme, considering the seismotectonics influence, was applied for the artificial neural network (ANN) earth- quake prediction model in the northeast seismic region of China (NSRC). The improved set of input parameters and pre- diction time duration are also discussed in this work. The new dividing scheme improved the prediction accuracy for dif- ferent prediction time frames. Three different research regions were analyzed as an earthquake data source for the ANN model under different prediction time duration frames. The results show: (1) dividing the research region into smaller sub- regions can improve the prediction accuracies in NSRC, (2) larger research regions need shorter prediction durations to obtain better performance, (3) different areas have different sets of input parameters in NSRC, and (4) the dividing scheme, considering the seismotectonics frame of the region, yields better results.

Seismotectonics Considered Artificial Neural Network Earthquake Prediction in Northeast Seismic Region of China