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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Investigation on relationship between epicentral distance and growth curve of initial P-wave propagating in local heterogeneous media for earthquake early warning system

Fig. 6

B obs. values 11classified by the station’s a values and its approximate curves (B-Δ equations). The blue circles are B obs. values at the stations characterized by a = 150 m, the green circles are by a = 200 m, the black circles are by a = 600 m, and the red circles are by a = 1000 m

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