3Discussion on relation between big flood and large earthquake by means of the effect of the Tropic of Cancer19-22
7Evolvement characters of Morishita spread index before the moderate strong earthquakes in large North China and its application48-56
8Digital seismic data analogy and focal parameter estimation,talking Heyuan earthquake, Guangdong as an example.57-63
11Preliminary study on the relation of between abnormal characters of body-strain observation and moderate strong earthquakes76-79