Ninghe earthquake sequence occurred in April of 2003 was clearly felt by the majority area of Tianjin municipality and the epicentral intensity is V.

Study on the prediction of relatively strong aftershocks in earthquake sequence with least square fitting method;

The type of earthquake sequence and distribution characteristics in Ma anshan city and surroundings;

A review and discussion on earthquake sequence research;

In this paper the possibility and the specific method of CORA-3 pattern recognition algorithm are explored for the early synthetic judgement of seismic sequences of strong aftershocks,strong swarms and foreshock-mainshock-aftershock.