CHARACTERISTICS OF EARTHQUAKE ACTIVITY IN QINGDAO AND ITS ADJACENT REGION
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Graphical Abstract
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Abstract
The seismogeological background and seismic activity in Qingdao and its adjacent area are analyzed.Combined the focal mechanism of small earthquakes in the region, the relation between time sequence variation of P and T axes and earthquake activities in adjacent area is studied.The results show that the occurrence of strong earthquakes can cause the variation of P and T axis direction.The variation of P and T axes is synchronous, but the magnitude of P axis change is more obvious.
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