Research on distribution of disasters in Tangshan Earthquake;

Objectives:To investigate the current prevalence and risk factors of post-traumatic stress disorder in people orphaned by Tangshan earthquake in 1976.

An algorithm of fault parameter determination using distribution of small earthquakes and parameters of regional stress field and its application to Tangshan earthquake sequence;

Analysis of the anomalies from oil and water wells in different area as well as their mechanisms before Tangshan earthquake;

The basic problems in geometric modeling for virtual environment of Tangshan digital seismological station, as well as the vast prospect of applying virtual reality (VR) technique to the management of seismic monitoring are discussed.